They'll be something terrible in it I'm sure. Some awful reddit theory (a character we've already met is Cass's sister, B2 becomes K2) or some cringey bit of fan-service. Disney have had too long to find a way to meddle with it (I don't even think the post-credits scene in S1 was the writers idea, and suspect it was thrown together when the show was airing to pacify the people who need everything explained and want everything in SW to be reference to itself (even when such things call the timeline into question))