Multiplayer enhancements #1 and above all, but at least we know that's coming. Planetary landings, yes of course. I think also with the missions it would be nice to flesh that out. I'm not sure if voiceovers are needed, but maybe have inline photos to go along with it, maybe a mugshot or headshot of whoever is giving the mission. And why not be able to accept/receive/update missions from within the cockpit, while out in supercruise or normal space? Would be cool to enter a system and get a broadcast message for help or to meet an NPC at a certain station etc ... I think overall the mission system can be greatly enhanced and made more immersive than what we have now, which are pretty boring trees of text.