Marvel has started to release covers for the upcoming "Death of Spider-Man" event. "Ultimate Comics Spider-Man" #153 (release date 2/2), and #154 (2/23), will be written by Brian Michael Bendis and drawn by Sara Pichelli and David LaFuente, with covers by Ed McGuinness. "Ultimate Avengers vs. New Ultimates" #1 will feature the creative team of Mark Millar and Leinil Yu, with covers by Yu, Bryan Hitch, and Frank Cho; that book will hit stories 2/9.
Though we don't know much about "Death of Spider-Man," judging by the covers Marvel has released it will probably involve a great deal of the Ultimates Universe. As always, True Believers: stay tuned!