Someone earlier requested it, and I think it would be a good idea for 343i/Bungie to clarify just as quickly as possible what it is they can and can't alter within the Reach matchmaking/multiplayer framework. I assume that some of the answers will be unpopular, but at least it would help to keep expectations in check. Coy answers like "You're going to be 10% more happy" or "We have cool stuff planned for CE lovers" only seem to fuel desires that may be unrealistic.
It's pretty clear now that they aren't going to do a 180 and include original multiplayer, so perhaps it would be more constructive to discuss what it is we'd like to see from Classic modes. I don't know all the in's-and-outs of Reach (barely played single-player, never touched multiplayer), so I'm not sure how much there is to be altered.
So for everyone else that's very apprehensive but still somewhat hopeful, I'll ask: what do you want out of classic playlists/matchmaking? My picks:
--classic weapons (powerful pistol), no modern era weapons, no lock-on rockets, no dual-wield, no swords
--no special items, no armor abilities - just camo, overshield, etc.
--indestructible vehicles
--physics - I'm not familiar enough with the nuances of CE/2/3/Reach to comment much, but I'd like to at least be able to jump as high as I did in CE
--fall damage - I don't really care that much about it either way