That's exactly the sort of "drama" that makes me stop watching something. Nothing but a predictable, contrived attempt at manipulatimg the viewer / reader.
Well, that's the price we pay for the series being set before the Original Trilogy. Considering there is no mention of other Jedi in those movies, and Obi Wan and Yoda certainly seem to be saying that Luke is the last one, that means there aren't many possible outcomes that are available for the Jedi in Rebels. (Now of course someone will bring up the ever popular "But Yoda and Obi Wan were wrong and/or lying!" theory, but I really have trouble believing that.)
So, before the series ends, Ahsoka, Ezra, and Kanan will either:
1) Die.
2) Turn to the Dark Side (and potentially be doing "secret" work for the Empire during the OT.)
3) Go into deep hiding, so deep the Rebels who they worked closely with have no idea where they are.
4) Are alive and working for the Rebels, but are doing other missions during the OT (and aren't considered valuable or powerful enough to be considered during key moments of the fight against the Empire).
Number 4 seems like a cop out to me. Number 3 isn't quite as bad, but it's tough to swallow the idea that Leia, Bail Organa, Obi Wan, and Yoda totally ignore them in such desperate times.
Which leaves die or turn to the Dark Side. And I'm okay with this. I'd much rather have a dramatic final scene with Ahsoka and know her fate than leave it a totally unanswered open question forever, even if that ending is somewhat predictable.
Edited by Jaspor