I predict that we will see a Metallica pack once they are contractually able to do so. And I don't think they'll skimp on it. I'm thinking a 12 pack at the $19.99 price point. Metallica, love em or hate em, is one of the few bands that will move the needle with both the faithful hard core rock band addicts and the general public alike.
I predict that we'll see the franchise start up again on the new xbox/ps4. There just needs to be the passage of time for us, the consumer, to not be so ticked off when we need to start from scratch because the current gen DLC doesn't transfer over.
I also predict that I'll eventually get a bass score recorded for all 1280 of my songs. I have guitar scores recorded for all but about 20 of those 1280. I'll get those done too. And possibly get a keys on guitar score recorded for all 320 songs that qualify. Maybe I'll even try to figure out that mustang yet too! This game still has lots of life yet for me.