Well 343 has a 10 year contract for 3 games so we won't have to worry about that. But at the rate it's going, Halo 4 won't last another 3 years.
If it were up to me, I would make it so in loadouts we could only start with UNSC weapons, no instant respawn, and no join in progress. I like the idea of loadouts but why would we ship out our soldiers with foreign weapons? Ar, Br, and DMR primary. And only Magnum secondary. None of that stupid boltshot.