I agree, with the qualification that the ability of the higher primates to "revise and reshape" their world is extraordinarily limited, though perhaps greater than that of "lesser" species. But all that tells me is that different species are differently "abled." There's nothing here that tells me with a certainty that the higher primates will become "abled" as we humans are, given just a few million years or so, natural selection or no. That is a conjecture, a belief.
Not entirely a wild guess, however. There is the evidence of our own sweet species, which appeared rather recently (geologically speaking). So it would seem that these things can happen. But as has been pointed out earlier, now that we're in the way, it's unlikely that our distant cousins (or whatever) will be able to make any progress in taking over our turf.