Evangelion Unit-01
Master Chief
Nah. Halo is a sensitive franchise with a very vocal fanbase. You cant introduce any new formula to it.
Whatever the route forward is they need to re-evaluate 343's structure and priorities.Introducing a new studio will make it worse.
Most Halo fans want the game to be treated like CS. The classic formula works for both the competitive and the casual. Leverage that rather than changing it. Give us one good MP title that can last for 5-10 years. Look at what other games are doing on the pro scene. We will buy battle passes and skins; you don't need to cut Big Team Battle+Fire Fight and replace it with Warzone to make that happen. The sooner MSFT can figure that out the better.
Singleplayer is a different beast. Stuff like sprint isn't as big of an issue here. Story went off the rails when 343 took over-complete disaster, the "Spider-Man Clone Saga" of video games. Art and music were also a substantial change-like Star Wars with a pop soundtrack in place of John Williams.
I would decouple the MP and SP. Let MP be a live platform and SP iterate on a 3-4 year cycle-use it to introduce new sandbox items in the MP.