So 343, what's after the map packs?

As we all know the final confirmed map pack, Castle is being released VERY soon. Halo 4 hasn’t even reached a six month lifespan yet. This worries me as this will lessen Halo 4’s life span or will something else be replacing it. I wonder if it is a forge world, more maps, or something new and amazing! What do you guys think will be next after the map packs are released?

i can haz hornet?

Well, some of it is 343i continuing to learn and fix.
A Forge map (pack?) after the TU would be great. And then expanded custom options.

They are likely starting work on Halo 5 right now, so I wouldn’t expect too major of things besides reorganizing Halo 4 in some ways to fix it.

Vehicle updates would be awesome.

The Title Update that the whole community has been crying for>

How about a few more Forge maps and remakes in matchmaking?