Of course, I would like to see a multiplayer mode or Coop with friends added. Otherwise, the game will lose its hype and there is less activity since many people were expecting multiplayer and not events and changes in models.
Viewing post in Voices of the Void 0.8.2 feedback
I don't think anyone is going to be really expecting multiplayer to be added that much if they actually read the literal first FAQ entry on the game's page, stating that multiplayer is unlikely to be added.
"Q: Will there be a multiplayer in the future?
A: Most likely not, due to the lack of networking experience and lack of foundation for net in the game."