According to Rolling Stone, U2 and producer Danger Mouse are wrapping up work on the band’s next album, which is expected to be released this fall. Though there haven’t been a lot of details about U2’s first release since 2009’s No Line on the Horizon, it may feature a collaboration with Coldplay frontman Chris Martin, who was recently seen at the studio with the band. According to a Globe and Mail interview with music producer Daniel Lanois, who recently visited with Bono to preview a few tracks from the upcoming record, the new tunes have “shades of Achtung Baby” …