I wouldn't be surprised if the upcoming "Shape-o-bots" episode is on there...According to Muppet Wiki, the Sesame Street DVD after Elmo's Music Magic will be Elmo's Shape Adventure. Currently there's no cover image or description. We'll probably see the cover soon and learn more details, but for now we don't know if it'll be a release of street stories, an all-original plot, a mix of original footage and past clips, or what. The suspense is a bit exciting, though I predict this release won't be too special (unless it has the sketch with two Anything Muppets drawing shapes or any Kermit segment involving shapes).
But really, they are milking these Elmo videos for all they're worth. I'm glad we get stuff like Best of Spoofs, but I hope it does well enough to get them the message that collectors like DVD's too. Or at least another spoof set.