Every Halo after combat evolved has added a new feature. Some are good, some are bad. But do we really need to keep advancing further? I enjoyed armor abilities more than the spartan abilities, and the same can be said for the equipment in Halo 3. So did they really have to go, even when both previous features had there fans? But what do I know, I know nothing about what the players would want. So players, say what you’d want in the future.
You should take a gander at the wishlist style threads in General Discussion. There are plenty of people’s ideas about mechanics and other things for you to browse and you can add your own thoughts to those as well.