Nightmare visions: The Image message board apparently has the goods on Warren Ellis' next project for Marvel, Ultimate Nightmare:

ULTIMATE NIGHTMARE #1 (OF 5)
Written by WARREN ELLIS
Penciled by TREVOR HAIRSINE
Cover by TREVOR HAIRSINE
PART 1 (OF 5)
Superstar Warren Ellis teams with hot newcomer Trevor Hairsine (Ultimate Six) to tell a story of international intrigue that shakes every Ultimate book to its core! As world communications systems break down, the source of the anomaly is revealed as Tanguska, Russia. Nick Fury of S.H.I.E.L.D. leads a force comprised of Captain America, Black Widow and Sam Wilson to investigate, while, simultaneously, Charles Xavier of the X-Men dispatches his own team consisting of Jean Grey, Wolverine & Colossus. And what they discover there – and what happens next – defies belief!

(Link via the vigilant Marc-Oliver Frisch.)