They did produce an entire soundtrack of songs for Tron: Legacy, though. Which was their latest work since their last album. Although not technically listed as their album, it was all composed by them. And I'll admit that the director couldn't have chosen better musicians to provide the music for Tron.
But ya. It'll be nice to see a new album come out 
You're right, the Tron Legacy soundtrack was their latest work, but like you said not listed as their album.
Plus the soundtrack was a mixture of an 85-piece orchestra, and of course the duos electronic music. So Daft Punk got off easy with this soundtrack, pretty much only doing half of it =p
