Obviously another mc chris/MC Lars outing is a big draw, and since truncating the first third of his TeacherRapperHero duties Mega Ran has become even more the epic showman. I'll caution attendees, however, not to write off relative newcomer to the scene Adam WarRock. I had the pleasure of catching him at Nerdapalooza, and, in addition to being a helluva nice cat, he truly commanded the stage during his performance. Shit, he more than held his own during the Dual Core freestyle session as well. (Dude even came correct with a Casey Anthony reference! #topical)
No dates have been announced, but you can be sure mc's people are hashing all that out quickly. Keep an eye on each of the artists' official web presences for further information as it becomes available.
And if the show comes through your burg, definitely make it a point to come out. This lineup is truly a force to be reckoned with.