Looking at the new Big Elmo Fun DVD cover, it looks like there might be a new style to Sesame Street covers. This one no longer has an illustrated Sesame Street lampost at the side.
I don't know if including existing videos as bonus features will be a new trend or not, but if so, then I wonder if the upcoming "Best of Sesame Friends" DVD will include The Best of Ernie and Bert (though one of the clips in that one is nominated for voting) or The Best of Kermit on Sesame Street. I'd rather see some bonus clips that hadn't been released commercially, or some cool featurette (yeah, how likely would that be?), but it would be a good way to get those two long out-of-print videos back in print.
I don't think any additional information on Big Elmo Fun has been posted yet (it's only been a day, though additional information seems to be added within a few days of initial announcements), so we don't know if it's a size-themed release (I suspect that "Measure, Yeah, Measure" song will be included) or an Elmo-themed release. Perhaps the use of Monster Hits is a clue that it's an Elmo spotlight video, since he is heavily featured in that one (though he's only in one of the inserts, and one where he's part of an ensemble cast of mosnters at that). Or, if there is a new trend of rereleasing old videos as bonus features, mayeb they're not intended to have much to do with the videos they are features with (after all, the "Sesame Street Double Features" and "Essential Sesame Street" releases didn't pair videos by subject).