I geuss they will release the board not without OS4 meaning not before it ships with it. Maybe there will be some updates later on but I can not imagine that they release the "OS4 board" without OS4 running on it. Otherwise they would loose many customers to MOS and as A-Eon is a company closer to OS4 than MOS they will probably wait for it. And as I read MOS does not fully install on it yet too. There are still works to do on the installation process and details. So there is more work for the MOS team as well. Means we do not know which one is earlier ready on it: OS4 or MOS. I think the board will come out when OS4 is ready, maybe when both are at the same time.