Criterion getting Abel Gance's Napoleon would be awesome. It would be a huge release considering it would take 2-3 discs just for the complete version, not to mention the Zoetrope cut (which would probably fit on one Blu or 2 DVDs). Kevin Brownlow has been giving lectures on his work with Napoleon and would be perfect to turn into a documentary. He even showed clips from a bunch of different versions like the bizarre 1930s talkie re-release, part of the tryptich showing up as stock footage in an MGM film, and even what his 9.5mm and 17.5mm copies looked like before all the 35mm was found.
For that matter, Brownlow's own film It Happened Here would be great for Criterion if Milestone doesn't still have the rights.
It will be interesting to hear about the director's cut of Thief and the Cobbler and what kind of state it's in. Criterion could probably swing something with Miramax like they did with the Qatsi set. If the cut is different enough they might even be able to sell it as a "new" film ie. Night Breed: Cabal from earlier this year.
The Indiewire article is slightly misleading. From all other accounts, Richard Williams is showing a 35mm workprint he had printed the last day of production at his London studio. In theory, it should be identical to the bootleg making the rounds, but it might have some extra/more complete footage. There might be a rights problem since it's with Echo Bridge (who re-released the same old pan & scan DVD as Miramax and TWC) and the film elements are apparently owned by Disney.
Criterion would be a perfect outlet for a comprehensive set if they can sort out the rights and considerable work needed. There's certainly enough material for a huge Mad World styled release.
edit: The Academy website notes that Williams is showing a "reconstructed" workprint that uses multiple sources instead of a straight telecine of the 35mm workprint.