Regardless of what happens to the Old Dragon King, it has nothing to do with Jiang Chen at the moment. He is currently looking expectantly at the Thunder Pool in the Nine Heavens, waiting for its promotion to be completed.
As long as the Thunder Pool successfully ascends, the powerful supplemental force that it will produce is enough to propel Jiang Chen to break through, stepping into the realm of flesh and blood creatures.
Jiang Chen is willing to risk all dangers, even slaying a Dao Sovereign, to help the Thunder Pool ascend. His main goal besides obtaining a divine artifact at the Taoist Master Level, is largely to achieve a breakthrough.
Because of integrating the Blood God Sutra, Jiang Chen's Emperor Pan's Heavenly Divine Great Dao Scripture has become more complete. This also means that he needs more power to break through and the resources he prepared in advance are not sufficient.