Hey! Thanks for checking it out :)
Haha that's quite the list. I can say it'll definitely have *more* stuff, more structures to build, more tools to craft, more resources to find etc.
As far as combat and mobs are concerned, really trying to keep the game more of a passive exploration/discovery game, where the environment is the primary threat. There may be mobs in it someday, perhaps even aggressive ones that you need to avoid, but combat probably won't be a core part of the gameplay.
Multiplayer: the short answer: Multiplayer is a LOT of work, and I'm just one guy. So hate to say, probably isn't going to happen in this game.
Cheers,
- Steve / @cairn4