It's just that regular Kiva isnt even out yet so the possibility of Saga is still pretty good.
Human/civilian toku characters. Theres too many to mention *cough* Kouga *cough* but all of them are pretty much impossible.
Has there ever been an official word on this? They made a project BM Ankh, which means they at least have the rights to use his likeness for figures, and I don't see why they couldn't write into the actors contracts that they're signing away their likeness to be used on toys, etc. We see that happening with most sports, movies and wrestling, etc
If they're not doing it, I'd guess it's simply because there's not much demand for it.. which is too bad.
Also, I think it's a bit hasty to be listing Sentai figures as toys we might never get. It's going to be slow, sure.. but we're going to see Zyuranger figuarts,
eventually (I'd actually guess that they would be high up on their list, probably right after Deka and Magi).