I don't think Bethesda is legally allowed to re-release Arena and Daggerfall as they've already been released for free and provided as-is with no support. Plus, Daggerfall sparked a lot of controversy with its nudity, so in charging money for it again the ESRB (who is now infinitely more sensitive than they were in 1996) may start some whole tirade among angry soccer-moms and the like. As a worst-case scenario, that is.
In the case of the older games, I don't think Bethesda can include DOSBox on the collection either as it's a non-profit project. They'd have to just shove a giant readme in telling people how to run the games, or do what they do with the site downloads and just say
"here it is, you're on your own". Which I'm sure they can do again, but I think going retail with these things changes everything. :shrug:
It's a good idea, though. The Elder Scrolls fanbase spans roughly two generations of gamers, and has people from the PnP RPG scene (Arena/Daggerfall), the RPG scene (Morrowind), and the action adventure scene (Oblivion). Much like how LucasArts recreated the original Monkey Island to introduce younger gamers to the series in preparation for Telltale's episodes, Bethesda should do the same - the series gains more and more acclaim with each installment but lots of people just don't know enough about its roots.
As a stickler for physical copies of games and all the "goodies" included, it'd be an added bonus if we had all the original manuals and other goodies (i.e. the Stros M'kai map burned by Todd Howard in a parking lot) reproduced, which seems unlikely. Still, I'd love physical copies of Arena, Battlespire, and Redguard (the three games in the series I do not own on disc), bundled together in a nice well-designed box, akin to Blizzard's Battle Chests? Count me in!
:tops: