I think 343 should just make Halo: Reach the way it was back in 2010. Its a shame that the nameplates are gone, as well as many other features. A lot of people keep saying "we need to make space for the future", true, but we shouldn't forget where we all came from, and we certainly shouldn't neglect it. A game like Halo Reach is unlike any other game I've ever seen. It's the real world: not everyone gets to see tomorrow, sometimes sacrifices must be made to obtain a greater goal. Noble team was badass, but bringing them back or one of them (save for Jun) would just break the entire purpose of Halo: Reach.
I do however agree with a game about the other Spartan III's on Reach. I'd love to see what downtown New Alexandria looked like, or see the famous Castle Base, or perhaps have more beautiful sights of Visegrád.
I can only imagine what it'd be like to play as the other spartan-III's who are helping evacuating Reach.