Your idea is good but a pipe dream sorry to say. Bungie is putting all there money on 1 horse. Its not economically in their best interest to waste time and resources on last gen. Plus ill bet you sony and microsoft are pushing them so more people will now go out and buy new systems. They will not throw you a bone that ruins the whole stick and carrot concept. They want you to go, dam I'm missingout,better get a new console. Its all about money,and last gen is not in that scenario. Loyalty means nothing to them at coporate level. Money does tho.