I do think with Hot Toys its not always safe to come up with a deadline and say if something isn't announced by x date it is never happening. As an example I look at the Iron Monger, Spider-Man, Ghost Rider, the Platoon figures and Abigail Whistler. I'm also thinking about the things that have been announced but we haven't see pics of yet, like the Christopher Reeve Superman and the Burton Batman stuff. I know people tell me to give it up but I still hold out hope for a Rorschach.
As far as Tron goes there are some other windows of opportunity for announcing other characters. Its possible we may not see a Quorra until the Tron: Uprising series airs, if that show is popular it would be smart for HT to release another figure. Also, if Tron 3 really does happen, they could release a figure while the hype builds up for it. I also think Tron: Legacy will have a ton of success on home video.