UPDATE: Harmonix has announced Dance Central: Spotlight at E3. It's a digital-only (download only) game that's coming this September. Harmonix boss Alex Rigopulos said the game had new technology that gets music tracks into the game faster than ever before. This should mean more, newer content and more often. ORIGINAL STORY: US video game age-ratings board, ESRB, has listed/outed Dance Central: Spotlight for Xbox One (via Project Boommeister).
Doesn't say too much about it, other than that there's the option for downloadable music - what, really? - and that some of the songs have naughty lyrics.