Please, God, don't let this happen. If Linkin Park ever want people to take them seriously, then they need to stay as far as possible from musicals, Glee cover versions and that kind of stuff.
I don't consider The Wall a "musical", it's more of an artsy film. If they can manage to do something like that, keeping a serious tone and a good story, I'm all for it. Thing is, The Wall was always meant to have a story, while ATS is just a collection of songs with an overall theme (and not even all of the songs in the album follow it). If they can pull it, great, but in all honesty I don't see it happening. What I don't want is something among the lines of the American Idiot Broadway musical. That was crap.
A Thousand Suns is just a concept album without a concept. Unlike American Idiot or The Wall, there's no theme that lyrically ties the whole album together
There is, it's just not given explicitly in every song. It's more in the interludes combined with the order and subject matter of the tracks that makes the album's theme extremely obvious. You don't need to remind people what the theme is in every song, the context of where it is in the album provides enough of a picture. And it doubles as a pretty neat idea because singling out a song from the rest of the album changes its meaning, and makes for good radio or something.