Realius' future sight was just him simulating countless variables as well as possibilities and checking the feasibility of those variables and possibilities. It was not that Realius couldn't see farther than a few decades but because the accuracy of his future simulation would lower after a few decades.
Not to mention, the variable of someone from another universe arriving on planet earth would render all of Realius' future simulations useless. After all, Realius wasn't at Universe Realm yet so his future simulation wasn't at a universal scale yet.
Realius' future simulation was only at a world scale. If planet earth didn't have any alien invaders from another world such as the homeworld of Haize, Realius' future simulation wouldn't be limited to just a few decades but up to a millennium.
All in all, Realius wasn't that worried about Real Delusion's future now that Real Delusion had 11 High Realm powerhouses.
