Board Thread:General Discussion/@comment-4786757-20141217013835/@comment-24674051-20141219164923

Save the clip shows for pre-season/pre-arc specials (Magic is coming, WIcked is Coming, etc).

At this point, season 4 will have 23 episodes (even though 2 of them comprise the episode entitles "Smash the Mirror"), making the Season 5 WInter Finale the 100th episode. Since those are typically a tie up loose ends and set up the next half type episodes, I think the coolest thing would be to wrap up whatever arc happens in the front half, and then the set up for the back half includes the establishment of a permenant portal between Storybrooke and some point in the EF, as part of the set up for the back half of 5 occurring mostly in present day EF. And this might be a good point to set up a Camelot Arc to occur in the EF.

As for guests, I would really keep that down to a minimum, and save the reunion for the series finale.