Near the tail-end of the four-page interview, the site mentions The Beatles: Rock Band to Daltrey, who cuts straight to the bean spilling.
"The game, yeah, yeah, they're going to be doing a Who one next year. There is one planned. (The idea) is fabulous. Anything that gets non-musical people interested in music is wonderful. In my opinion, music is our last true great freedom. They can burn our books, they can burn our paintings, but they can't stop us singing and making music."
We've reached out to Harmonix for comment on this, but given their seemingly close relationship with The Who, it doesn't seem like a stretch to think they might make a standalone game with the band.
One catch is that The Who discography, with 27 top forty singles from 11 studio albums and nine live albums, isn't quite as deep as The Beatles' which includes 12 to 27 studio albums (depending on how you count them) and two live albums.
Update: According to a Rock Band spokesperson, "We're working closely with The Who on what's next, but don't have anything new to announce at this time."
Daltrey opens up on singing, life [Mass Live, thanks Pete]