The Greehornes, are reuniting while The Raconteurs are on hiatus and launch a tour at the Comet on August 20th leading up to a new album to be released in October. Their FB page seems to be the place for the most up to date information, as their website appears to be under construction.
They would make a great guess for the MidPoint Secret Show at this point. I have zero inside information, but their tour schedule has a big gap that leaves plenty of time for some MidPoint love. Let the rumors fly!