Marvel unveiled the following preview pages to Thanos Rising featuring the pencils of artist Simone Bianchi at the recent Comic Pro meeting.
This is from the new Thanos origin series written by Jason Aaron.
Also look for Thanos in the FCBD comic from Marvel with Infinity.
Also there's been mention of another image being released at the ComicPro said to be a red and black Marvel logo with "of the Dead" and "Fall of 2013" underneath (via Newsarama). That image has yet to hit the net.
Update: The "Marvel of the Dead" image has been released which may suggest a new George Romero zombie book.
(below images via CBR)