After knowing what really happened, Ren started inquiring about the current situation of the world. He learned that some situation have completely changed. Black Zetsu has interfered less in the history of shinobi. Black Zetsu must have been wary of the enemy that attacked mother that night. From Kurama's word, he could probably guess Hagoromo must have known something and prepared ahead of time to counter attack. Ren thought that his two brothers must not be dead. Their body may have been destroyed, but their spirit must be alive. Reaching their power level, it is ridiculous to think that they died of old age. Just think about it, Sage of Six Paths has power to create life from only chakra and make them immortal. Why can't he apply those abilities to turn himself something similar to tailed beast. But it must have some serious drawback or he must have some other plans.
In the anime, his spirit gave Naruto and Sasuke so much power that they almost reached Six Path level. Though divided, there is no doubt that Hagoromo must have much power left to do so. Also, the seals power returned back to him after they sealed Kaguya. This shows that he must be alive in another form, just watching over the ninja world.
Well he will meet his brother when the right time comes. Now talking about changes, Hashirama didn't die early, so the first shinobi war didn't happened. Madara didn't return to village, but some of the Uchiha clansmen followed him. So now Uchiha clan is weakened. Hashirama retired from Hokage post after 15 years of becoming Hokage. Konoha village prospered under him. Senju Tobirama became the second hokage. Konoha Police Force is established under his urge. But it become a place where all clans can join unlike in the anime, where only the Uchiha clan people joined. Sarutobi Hiruzen became hokage after Konoha's 25 years of establishment. Senju Hashirama died due to old age in Konoha, 35 years. After his death, Tobirama died in another 2 years. Konoha suddenly weakened a lot. This became the signal for First Shinobi War.
Many able shinobi died, many clans weakened. This war became a meat grinder after 37 years of peace. It lasted for 3 years. Most shinobi of the warring era died and new heroes followed. Though Konoha won the war, it's total strength weakened a lot. In this war, Hatake Sakumo, Senju Tsunade, Orochimaru, Jiraya, Uchiha Kagami, Senju Nawaki, Hyuga Tenjin, Might Die, Nara Shikaku, Inoichi Yamanaka, Choza Akimichi, Aburame Shibi and many others became famous. This showed that chaos gives birth to heroes. In desperate times heroes rise to lead others to safety. They give others hope. One major incident that happened after the war is the attack on Uzumaki clan by combine forces of three villages Iwagakure, Kumogakure and Kirigakure. Due to timely support from Konoha, the clan escaped total destruction. After this incident, Uzumaki clan decided to merge with Konoha and became a clan of Konoha. This strengthen the village and a new era of peace followed. There is no sign of Danzo or Orochimaru plotting against the village. So, the overall village situation of is quite good compared to the anime.
Ren started comparing the two scenarios and decided to plan after discussing with others.
"OK. I got a proper understanding of current situation. So, what's your suggestion, Minato."
Minato was surprised to find Ren asking for suggestion. He thought that Ren will decide everything without asking them.
"Look, I know what you are thinking. Don't forget, I am from previous era. You are familiar with this era. So you should decide, I will add some suggestions. I may know some future events, that doesn't mean they are bound to happen. Hey, I am only 10 years old."
The three of them started laughing. Yes how could they forgot that he is a child. Though he may be the big brother of Sage of Six Paths, he hasn't grown up yet.
The reason why Ren decided to plan himself was mainly because current Konoha is totally different from the anime. He doesn't know what is Black Zetsu planning. Currently Madara may be alive. He should have transplanted his Rinnegan in someone. With the Uchiha Clan member who followed him, it may be easier. Who knows what their strength is. Ren think that they must be stronger than Akatsuki. After all he doesn't have to lie to his clansmen. If we follow this way of thinking, then future is grim. This time they have to face much more difficulties and unknown enemies. So he have to take steps carefully. His only advantage is he himself. Though he doesn't want to stop his plan completely to revive his mother, he wants to be sure to reduce casualties. He decided to say about the future events only in bits and pieces.
"Look from what I have seen in glimpse of future, Madara was alive and he had Rinnegan. Moreover he was more powerful than his peak period. From what I had seen, his power level almost reached mother's level."
Though he exaggerated about Madara's power, they have to be prepared. In case saving his mother involves fighting her. God Tree will surely influence her again. So they have to be prepared for the worst.
Hearing his words, the trio were petrified. Now they don't any God(mortal) level shinobi, much less Six Path level(demi god level). To fight Kaguya, they need at least two Six Path level shinobi.
"You aren't kidding!, right?"
"No Kurama, I am serious. I saw every shinobi, from all five villages and some resurrected shinobi, fighting hard against Madara."
"No way! Ren, did you saw us win or lose?"
"No, Kushina. I only saw them fight not the result. So we have a chance. From what I estimated, we have maximum 20 years to prepare."
Dead silence followed after Ren said the deadline. Minato, Kushina and Kurama looked at each other. After some time, Minato started making plans.
"OK. No time to waste in sulking. It's better to think of ways to increase our strength by large amount. Kushina and Kurama, you two have to try to achieve perfect coordination. Kurama, you must help her to achieve that."
Kurama didn't say anything, just nodded. He knows how powerful his father was.
"If Madara somehow reached that level, with his fighting experience, he may defeat father." He decided to help Kushina with all his strength. He doesn't want to become his plaything again.
"Kushina you have to train harder. You will be playing a vital role in that battle. Ren, I don't know about your condition, so i can't help you there. If you need my help, ask me anytime. I will help you as much I can. We can only prepare. I will ask my teacher to keep an eye for any news. I sure he can find something which will save us some time."