Gu Zhen Ren
There were 7 Stone Lotus islands. One for Spectral Soul (unknown specific content), one for Giant Sun (Call of the Ancients), one for Paradise Earth (Regret Gu), one for Fang Yuan (Future Self), and one that FJG has found twice (intended for him?). That leaves 2 unaccounted for. Based on the other 3 not-HC Venerables after him getting one I assume Thieving Heaven got one, the last one is a mystery. Maybe more for FY as his true inheritor, but I'm going to guess #7 hides Red Lotus himself, not actually dead.
Lol ,I really can't wait for the 2nd timeline 5 region war .. ..before that though is the upcoming Bing Sai Chuan awakening ,mother****er is an S+++ grade badass peak rank 8 equal or greater than Wu Yong and is an extremely competent ally to the zenith . This time while southern and northern would be a bit weaker in their offensive ,we can finally rely more on the invasion of western and eastern ,although western would need some help to stabilize .Perhaps ,an overpowered collaborator ...*cough There's also the 2 grotto havens ,profound literature seems like it will take a long while to produce any real results but Zhan Bu Du in beast calamity is already the bright star and the likely inheritor of it . Add to how much more powerful fang Yuans individual forces are ,then the rank 8 power Wu Shuai with his army ants ,the dragon palace and 4 rank 8s ,DI ZHANG SHENG and their surprise immunity to dragonmen extermination ... Last life heavenly court and central continent was battered beyond belief and northern plains alone exterminated countless generations of legendary experts ,this life will sure hurt much deeper .