Keep the roadmap up to date#356

I can’t help but notice that the roadmap is lacking several of the leaked features of the next update, such as drones, tanks, turrets, first person animations, med stand, character customization, more players in a multiplayer game, each player having the ability to claim their own ship, crouching…
It would be nice for the roadmap to always be up to date, to keep all the planned features in one place, so it’s easier for new members of the community to know what’s coming.