"It [releasing] depends if it's just going to be me and I'm going to still feel this kind of weird pressure," Persson told Polygon. "It's not really pressure, it's just some kind of weird creative block that's been going on for too long, and [0x10c] is going to be put on ice until we can fix that. I'm very excited about the actual game. We have two prototypes going on now. It's not really fun yet, but it feels like it could be fun because there's nothing to do in there yet."
We already knew the game prototype wasn't fun and was being reworked as of September of last year. This is a sign that whatever issues the game has run into, they haven't been solved yet. For that reason, Persson noted that he's expanding the team and bringing on another developer to get around the roadblock. He says the game is still a "ways off."