1.New mission structures- going from point A to point B the fighting waves of enemies isn't going to cut it. 2. Bringing in raid elements to strikes- strikes would be so much more interesting with some different elements added to then. Instead of running as fast as you can to the boss why not make it like a mini raid. Have a section like Templar in the Vault of Glass just scaled down. 3. Building some kind of narrative- I'm not one to think a game needs a story to be good. A game can be fun without a story. But if your going to build this world expand on it. It doesn't need to be a Oscar winning script, but something that makes me feel like my guardian actually has a tale and he's not just wandering in the desert on Mars visiting computers would be nice.