It seems very unlikely, but it could happen.
Humans haven't always been the dominant species, it's only our grasp of technology that keeps us where we are, a lot could happen in our future to shift the balance to another species (changing environment, animal evolution, virus evolution, etc...). Though we're more likely to kill ourselves off before that happens IMO, and not necessarily through war (we're living longer, and growing quite considerably as a species, I remember when I was a kid we used to say there were 6 billion people on the planet, and that was only back in the 80s/90s. We have to face up to population control at some point, despite it being political dynamite at the moment).
Besides that, I don't think humans are really 'superior', the main thing we're good at is being adaptable, but there are skills that other species have that we do not or that they are far better at. Also, the notion of dominance is misguided, as another commenter alluded to we're all interconnected.