Remember boys, never buy a game based on promises of future features for you never know if they will come true.
It’s an early access game. If you buy it now you are buying promises and the chance to be a beta tester. And that’s okay, if you don’t get emotional if things don’t turn out as expected.
I’d say if you’re buying it now, you should be doing so based on what it is as though it never gets another patch, because sometimes they don’t.