1. Its been "Put in the works." that's all we know.
2. It won't be the same, so no, not really, the halo 2 times were the halo 2 times, you can't replicate them, even if you make the same game.
3. Yeah.
I don't see how something like that can improve your accuracy, accuracy is something you have, it can't really be improved, all they are basically is analogue sticks on top of analogue sticks. how does it help?
Im not really sure how many people would want to do it tbh, because, 1v1's have never been popular in the casual community in general, and remember, they are basing halo 4 casually.
i think it'd be a great idea, it'd just never happen