People at Warner did state (paraphrasing here) "Classic Sesame Street is already available under 'Old School'." That was a few months ago, and if Warner never intended on any new "Classic Sesame Street" releases, I hope they change their minds someday (if their minds haven't been changed). For awhile I've been thinking about trying to determine when it started becoming less common for new DVDs to contain "old school" segments, but it might also be interesting to study the last few DVDs from the Sony Wonder era as well as Genius releases, to see how the amount of pre-1990 segments may have decreased on DVD.
And if WB doesn't intend on releasing DVDs that are strictly for the "Old School" fans, I would settle for a good compromise. Something better than just one classic clip and lots of non-classics and original footage. I doubt we'll get any new DVDs that are only original footage and classic clips with no 1990-2010 clips at all. Or maybe a DVD coudl include new footage and recent clips and then more than one classic clip as a bonus (I'm thinking 5-15 would be swell). P is for Princess has two Flying Fairy School segments, totaling 20 minutes of bonus content; They can easily put in more than just two or three minutes of bonus classic clips. The Play with Me Sesame DVDs were sort of a good balance between pre- and post-1990 segments (though only a handful of 1970s segments were included). I bought the first "Preschool is Cool!" DVD just to check out how the new series of DVDs is, hoping there'd be more classic clips than the one bonus one; There weren't any other classic clips, but I'd give it three or four out of five stars. Any additional "Preschool is Cool" DVD I get will most likely be after I see a listing of contents or hear about it having something I'm real interested in owning a physical copy of.
Regarding the Hawiia episodes, it was annoucned during the Genius era that Sesame Workshop was negotiating to release footage on a DVD of classic Sesame Street. So far we only got two clips on the 40th anniversary DVD (since they were getting clearances then it makes sense that some of it has been released). I hope we can still get more of the storyline on DVD someday. It's a shame that none of those clips are even on sesamestreet.org. Lately Sesame Workshop has been uploading full street stories online, as part of a "Summer Classics Series". The Hawiia episodes would have been perfect for that, since it's a vacation. Of course I'd rather have the full stories on DVD, and would prefer for sesamestreet.org to just include select clips from those episodes.
And if Warner Home Video has no current intentions of releasing more classic content, then I'll be praying for the company to hire a new person in charge, somebody with inteligence who sees classic Sesame Street as profitable.