honestly nvidia don't really care about amd, they have such a huge market share, as stated above, and regardless of what some forum figure says, I know several people that have recently finished degrees in game design, and all their home pcs are nvidia, both for creation or gaming, and all their computers at uni use nvidia.
it's the same with windows and Intel processors etc, to actually lose any substantial amount of business, intel/nvidia would have to release tech that's 5 years behind everyone else, that catches on fire and doesn't work.
OP I'd wait for the ti, even then you won't even need it, the 980ti is seriously specced out to annihilate 1080p gaming, unless you go onto 144hz monitors you quite literially, won't see a difference.