So we got a bit more info trickling in today. This time: Fighters.
Most of this we already knew, though there seem to be have been a few changes since Gencon. Counter is new (and we still don't quite know how that works) and from what I recall bombers weren't able to do crits before either (I believe a bomber's crit counted as a hit previously). That certainly gives the rebel fighters one hell of an edge, given that most of their fighters have the bomber rule.
It also means that a fighter screen seems to be even more essential for Imperial players as well, as letting a bunch of rebel bombers wreck crits in your unprotected flanks does not sound like a winning strategy.