I've been meaning to post this here for a while now, just haven't gotten around to it. If Sesame is rully pressed for either time and/or money, they could always do what I saw done with an episode for Season 31 on Noggin a couple of weeks ago. Take older non-essential episodes, preserve the majority of the street story segments and clips, change a few of the skits and/or songs seen on the original airing of the episode, and add the ending where Elmo goes off to set up the intro to the Elmo's World segment. The episode in question is one that could be titled Elmo in Numberland. Elmo made a book where he keeps going through adventures for each number from 1 to 10, and here's what happened. Didn't get to see the segment for the number 8 in the airing of this episode as part of Season 31, but the original episode featured the classic sketch of the King of 8. And then they changed the segment for the number 9 from the original to the re-airing. Originally, this episode had Elmo taking a ride on the Number 9 Train and went through a tunnel that led to the classic animated segment of the little old lady who lived inside a giant number 9. In the re-airing, this segment got replaced with the "Blowing in the Wind" parody where the cartoon person asks how many sheep will jump over his bed at night and answers to himself 9 before he falls asleep. And then of course, they added the obvious segway to Elmo's World where none existed in the original episode.
Hope this makes some sense and have a good day.