Continuing the discussion from Lead the OMRS15 Hackathon:
My understanding is that the official announcement is imminent (within days). Keep the week of 6 Dec clear on your calendar.
BTW... a lot of the hard work from @michael & team are getting us into a position to have predictable annual conferences where the timing & location are known nearly a year ahead of time. 2014-2015 has been crazy (poor @michael has the wounds to prove it). It will get much better going forward.