Yes, as hominids have been for more than a million years. An expanded toolkit though, even compared to today (though its possible that not all of our current tools will have the futures many of us expect, in the long run). Good manipulation of electromagnetism alone is having very interesting effects that we have only really begun to touch on, and I expect biotechnology and related things to have interesting roles to play. All of this will have to occur within the context of ecological laws which are pretty immutable, and living systems are very good at evolving and replicating and surviving in many contexts on this planet.