well like it's been said, simply fixing the NG+ bugs would be enough to get me to start playing it.
though if they really wanted to go the extra mile...
1) more levels to weapons and equipment.
2) new abilities for ryder and crew, and a 7th level for all abilities
3) a fourth skill slot on all favorites sets, and remove the cooldown from favorite switching, and allow active toggle abilities to remain active after switching between favorites. (maybe using researchable sam node/implant upgrades)
4) more places to explore/extra dungeons/etc.
