Hey guys,
So the new online multiplayer is now out, it's very different than the launch version. The launch version allowed people to take turns up to 12 hours and leave the game and come back later since it was all done via a server.
Now the online is peer to peer multiplayer, you can host or join a session and the turn time is 5 minutes before you can declare victory, you can also invite anyone on your steam list.
The multiplayer of the game is entirely free. With daily different heroes to play with.