I mean realistically even then we don’t know for sure, it took humans and our ancestors a couple hundred thousand years to develop to to where we are at now. It’s not to say any other of our closest relatives could end up on a similar path without us in the picture in a much more tropical climate as they are used too. The question is will the earth stabilize itself when we get to that point or will we take it out of balance so severely that it goes into run away warming like Venus ending all life.