From a press release:

Ashes to Ashes, the critically acclaimed sequel to UK hit Life on Mars, continues by fast forwarding a year to 1982, where leg warmers are cool and fluorescent is the color of choice. While Thatcher is in her element at No. 10 Downing St, bullish Detective Chief Inspector Gene Hunt (Philip Glenister, Cranford, Life on Mars) is back, policing the streets in his politically incorrect and loud mouthed style. Ashes to Ashes Season Two premieres Tuesday, May 11, 10:00p.m. ET/PT

After the bait and switch that occurred last year, where season 2 was announced to show up at the same time as the UK then canceled with no word from the company, this is welcome news to me.