Bob, I am under the impression that despite not meeting expectations re: game sales, DLC sales are very good. I know that I've bought every track!
Plus, Harmonix is very busy w/ both RB3 and RB: Green Day coming out this year.
"Sometimes you wonder, I mean really wonder. I know we make our own reality and we always have a choice, but how much is pre-ordained?" -- John Lennon
"Everything else can wait, but the search for God cannot wait." -- George Harrison