We are working hard on this. Because we completely replaced how multiplayer was done so that we could fix the myriad of issues with it, as well as moving the requirement for the game to have steam running, it necessitated us redoing the Steam P2P from scratch. This has the added benefit of us being able to really properly implement steamp2p and give a much more stable implementation.
Will include a full status update in each patch notes. It is a major priority at the studio - so the task gets priority over many other things and has company resources available to it. As soon as we can we will get it out for testing.