Was reading the thread before class and gotta say that I totally agree with Ram. I think its time for us to let go of the notion of going back to pure classic Halo. While the mechanics certainly still work, gaming has moved on. That's not to say future Halo games can't retain those elements and layer new ones on top of them. I think, thus far, Halo 5 is taking that approach and I'm fine with it.
I'm looking forward to seeing more of H5 and how they handle different elements of Halo multiplayer. Will flag dropping return, is the Flagnum gone, will Territories come back, etc. So far they've brought back descoping, the detailed combat log, static weapon spawns, and equal starts which have made me really happy. Halo 5 is off to a pretty awesome start, IMO. (Now I just got to play it to see how all the new stuff works together and how much they should tone it down.)