Marvel has announced the new ongoing series Guardians Team Up, with the first issue written by Brian Michael Bendis with cover and interior art by Art Adams (Longshot, Classic X-Men), launching in February.  The first team-up will be with the Avengers. 
Each story will be written by a rotating team of talent.  Marvel teased future team-ups with Deadpool, She-Hulk, and the Children of the Atom--the latter of which will be part of the upcoming  The Black Vortex event (see "'Guardians & X-Men: The Black Vortex' Crossover").