Marvel will release an original graphic novel by Jim Starlin, Thanos:  The Infinity Revelation, in April.  The OGN will feature Adam Warlock, the Silver Surfer, Thanos, and a battle with the Annihilators. 

“Thanos and Adam Warlock team up to deal with a universe imperiling event,” Starlin said.  “The story concludes with a major change in Thanos' status within the Marvel Universe, turning him into a greater threat than ever before.”

Starlin created Thanos in the pages of Iron Man in the mid-70s, and has revisited the number of characters in a number of storylines over the years.