It was first announced in January 2010 and scheduled for June that year. Why it's over a year late, not even Liam Sharp knows, as he wrote back in December 2010,
"it's already been delayed for months, and I've no idea why. I finished it in Feb…"
Well, the graphic novella by Sharp, Aliens: Fast Track To Heaven, is scheduled again for December 2011.
Here's the latest solicitation text…
Beneath the ice of Jupiter's moon, life teems in lightless oceans. But more spectacular discoveries elsewhere in the cosmos have left Europa's research facilities underfunded and ignored, a lonely wayside with an orbital station and a decaying space elevator. When one of the elevators stops midway, the rescue team discovers a deadly cargo that threatens life on Europa and on Earth.