Looks like Michael is having more fun on Facebook today (and it also sounds like "Tapioca Tundra" is on the set list!):
From Micky on Twitter today:
This article, which includes an interview with both Micky and Peter, seems to confirm that the Headquarters album will be played in its entirety on the 2012 tour.
Monkees Farewell Tour
Dolenz sings Nesmith