Apparently, Amazon has new IDW trade paperback listings for the rest of 2008 and beginning of 2009.

• * Transformers Movie Sequel: The Reign of Starscream (Paperback - Nov 29, 2008)
  Chris Mowry, Chris Ryall, and Alex Milne
  
• * Transformers Animated Vol. 6 (Paperback - Nov 29, 2008)
  Marty Isenberg
• *  Transformers: More than Meets the Eye Volume 2 (Paperback - Dec 29, 2008)
  James McDonough, Adam Patyk, Don Figueroa, and Guido Guidi
• * Transformers: Armada Vol. 2 (Paperback - Jan 29, 2009)
  Simon Furman, Pat Lee, and Guido Guidi
• * Classic Transformers Vol. 3 (Paperback - Jan 29, 2009)
  Bob Budiansky, Steve Parkhouse, Don Perlin, and John Ridgway
• * Transformers Animated Vol. 7 (Paperback - Jan 29, 2009)
  Marty Isenberg
• * Transformers Movie Prequel: Saga of the Allspark (Paperback - Jan 29, 2009)
  Simon Furman, Geoff Senior, Nick Roche, and Don Figueroa
• * Transformers: All Hail Megatron Vol. 1 (Paperback - Mar 1, 2009)
  Shane McCarthy and Guido Guidi
• * Transformers: Generation One Vol. 1 (Paperback - Mar 1, 2009)
  Brad Mick, Pat Lee, Don Figueroa, and Joe Ng
• * Transformers: War Within Omnibus (Paperback - Mar 1, 2009)
  Simon Furman and Don Figueroa

Mentioned Oracle1984's thread at the IDW TF boards. Remember kiddies! Dates can be subject to change!