This is actually really quite a fascinating subject.
We are actually far more adaptive and variable than other great apes, which is of course why you see so many differences in appearence between us worldwide, despite our still being the same species.
It was believed that the increase in migration and international travel we've seen over the last century or two would counteract this, and that we'd start to homogenize into a single race, where as actually the opposite is happening.
As we have developed better technology, medicine and living conditions, differences between groups have been increasing, not going away. Infact there even seems to be ever more branching off of groups even within countries, with different social stratas developing ever widening genetic idiosyncrasies between one another.
The reasons for this seem to primarily be due to in group preferences and decrease in infant mortality rates. Everywhere on Earth people are having children that live in far greater numbers than in previous centuries, and that means almost every random mutation any child has ends up getting passed on to the next generation and spreads throighout the whole community.
However with the exception of western far leftists people overwhelming prefer the familiar to the foreign, so even in multicultural environments, these mutations rarely if ever get transfered to other groups.
In particularly insular communities with more lax attitudes towards incest, this is causing quite severe issues with genetic maladies as unhealthy mutations and recessive genes become compounded and endemic to the population, such as has become apparent amongst British Pakistani Muslims.
What's more, class seems to be having the same genetic branching occur, with the dumber, poorer and uglier members of any culture being seperated from the prettier and more intelligent/succesful members as they refuse to interact with one another, something that's only been exacerbated in recent decades by the increasing gulf between politcal stances we've witnessing in recent decades.
So yes, give us a few centuries to millenia and we'll not just have evolved into something else, but we'll turn into many different something else's.