While, as a whole, the Walking Dead Universe to me is getting stale, Fear certainly has been a bright spot. Yes, this was an entertaining season finale. I like the idea of getting this show's timeline caught up with the original and the eventual merging of the 3 shows.
World Beyond can do whatever it wants; as long as its role makes sense in the bigger picture. I don't have much invested in that show beyond that.
I love crossovers in general and am hopeful that the meeting of the various characters from all 3 shows will pay off. And the reunion of Rick, Michonne, etc. is, of course, important, too.
Side note: I would like to see the writers play up a meeting of Maggie, Grace, and Al, whose real life name is Maggie Grace.