It might, but I'm pretty sure judging by their cautious approach to featuring themselves in a music game that they'll (or at least McGuine$$) want to be featured in an already established franchise as those usually has the biggest chance of succeeding if it has been successful before.
Not to make them sound greedy or anything like that, but I think they want to reach the masses and this game is a new franchise (= higher risk of selling bad). The new Rock Band is rumoured to have real strings on the guitar peripheral so if anything I think it would be Rock Band.