Have something like a "dlc checklist" in options that you just toggle them on or off. Though that would still put you on 2.x and just disable features.I agree. What I hope is it's an option to add in or out off. Something like a DLC that we can turn on or off and make both sides happy.
Not sure how much it would cost to make old versions as a separate download via Xbox Store or even if Microsoft doesn't charge if they'd(Pox or Tantalus) would be willing to put in the time to do that.