Those are all cool ideas, but that's a big wishlist when there are problems now that need fixing. In a perfect world, I'd like to see all of those things come to pass, but I'd settle for one idea within the next few months and some bug fixes. The PvP changes are most crucial for longevity, along with fixing the bugs that prevent guardians from defeating the game's bosses. Realistically, I don't think we'll see any big changes along those lines until Fall at the earliest.