I'm pretty much on board for anything Bungie does at this point. They created a series that I loved for ten full years, and I trust Jason Jones' design and worldbuilding ability implicitly. I just want to see what he and the other big hitters at Bungie have been up to for 5+ years now. Those story snippets have a really incredible Marathon/original Halo vibe, with lots of Proper Nouns and wild ideas.
The other big MMOs have all failed to hook me, not even close to the level that Halo did, but I hope they're the ones that can merge the MMO format with gameplay that isn't ass.