We've yet to hear of any new Mega Man soundtracks coming down the pipeline for 2013 (though I imagine they're on the way). However, a couple other albums are getting a head start by featuring Mega Man in their track list. The first is the 10th anniversary soundtrack for the Japanese TV show Game Center CX. The album features both tunes from the show as well as a handful of well known video game tunes. So you've probably guessed by now that the Mega Man contribution is the Dr. Wily stage theme from Mega Man 2. As far as I'm aware this is the original NES version, not an arrangement. The album releases in Japan on July 24th for ¥2,940.
The next is an orchestral arrangement soundtrack called Kiku Game, the first game album produced by Universal Music. I've yet to find info on what music in particular, but this two disc album is said to contain music from Mega Man 3. This album, too, releases July 24th for ¥3,150.
News Credit: CAP Kobun's Daletto Blog