Issue 24 of the More than Meets the Eye series (the Lost Light crew) is out this week, and a preview can be seen here.

This is part 4 of the Dark Cybertron story arc, and in the preview it looks like it features the race that will have a toy soon... so could be their pack-in comic. (I'm not saying what it is, so go have a look at the preview, or wait for the comic)