Newsarama has posted some advance Superman Solicitations for January 2010 including Superman/Batman and Wolrds Finest...

SUPERMAN/BATMAN #68
Written by Joe Casey
Art and cover by Ardian Syaf & Vicente Cifuentes
It’s the start of a new arc pitting the World’s Greatest Detective and The Man of Steel against a shape-shifting villain! But why is this new baddie continuing a thousand-year-old war against Krypton? Featuring art by Ardian Syaf (BLACKEST NIGHT: BATMAN) and written by fan-favorite scribe Joe Casey!

WORLD’S FINEST #4
Written by Sterling Gates
Art and covers by Phil Noto
The Toyman and Mr. Freeze activate the ultimate weapon — the new and improved Composite Superman/Batman robot — in an attempt to destroy all Kryptonians. This looks like a job for the World’s Finest, as Superman returns from New Krypton to team up with Dick Grayson Batman to stop the rampaging robot once and for all!

(Source - Newsarama)