Old Rengar Q Coming Back (Thank you Riot)

I am incredibly excited for the old Rengar Q to come back and hopefully change him back to an assassin instead of a bruiser. I'm also interested in seeing the new changes (if there are any other changes) that will come. Some possible changes that could come could be to his W and R but most likely not his E. His ult will probably lose its initial guaranteed crit. The reason for this is because in the current state of Rengar, if he gets fed enough it is actually possible to ult and just jump on someone once and with it the adc will die without any abilities. Granted this will still be possible but currently you have to have a Duskblade IE and Dark Harvest for this to happen. If they change the guarantee crit there is only a 20% chance that when you jump on the ADC when being that fed that he will instantly die theoretically. They probably wont bring back the true sight of multiple people because of how much that is to add into an ability that with the right runes is on a 30 second cool down late game gives movement speed and makes him camouflaged. The idea of his ult making him invisible is completely absurd and most likely wont come back because of how strong it would be. His W I think is just fine and doesn't need to be reverted only thing that needs to be changed about it in my opinion is the damage it does seeing how current AP Rengar doesn't work and his jungle clear would be just terrible without Tiamat. Some possible solutions to the jungle clear would be give his W percentage damage increase versus JG monsters or just making it do more damage so that he doesn't lose all his hp to chickens and krugs. I have heard people say ferocity should be reverted but personally I feel that would make him to strong. If he keeps his ferocity while clearing JG invading him is significantly more dangerous especially how the clip showed that Rengar would have 4 stack max and not the old 5. This would make it so that if you invade him he can almost get a guaranteed empowered ability on you and would probably win. If they did bring back keeping ferocity out of combat then raising the cap to 5 or more should probably come with. I would take everything I wrote about in this post with huge amounts of criticism. I am a Silver 5 JG main who has 142k points on Rengar and joined in season 7 so never got to play with old Rengar. I am excited for the upcoming revert and will watch skeptically with everyone else.