Welcome aboard, noachian. Thanks for working on a post to kick off a new thread. (and OP -- opening post).
It is important to keep the thread focus tight -- if you don't it will wander all over the place.
You have two parts here, both of which would make a good OP.
The first is giving your opinion of the relationship between Chimps and Humans. That belongs in "Human Origins and Evolution". If that is what you want go back and edit out your second paragraph.
The second is discussing the effect of either Chimps or Bonobos becoming a replacement dominant species and that looks like it could go in "Social Issues and Creation/Evolution".
Since I think it is pretty obvious that none of the close relatives of humans have any chance at all of being dominant if we disappeared you should make it clear that that happening is a given assumption behind the discussion you want to have.
If you actually want to discuss what might replace us then that is yet another possible topic that could go in "Biological Evolution".
Please edit your OP to pick one of these three.