Many people have asked for OSX support and multi-player, so Bass Blocks will now have OSX support and cooperative multiplayer on release. 6 player local co-op will be available at release (A bit silly for a PC/OSX/Linux title, but hey, there it is).
Plans to add online functionality are currently specific to the (hopeful) steam release. If the game is accepted onto Desura, I'll have to have a closer look at the Desura API to see if online implementation will be feasible. Currently there are plans to add cooperative multiplayer in the first few days to the steam release, and competitive multiplayer in early 2014.
Because of these changes, plans to implement Oculus Rift support have been pushed back into the new year.