It won't arrive before at least February or maybe even later in Q1, that's the plan. For all 754 Athlon supporters and for Sempron 754 supporters it will give you an option to upgrade the board and graphic card without the cost of a new 939 CPU.
We can guarantee that the board will support PCIe 16X slot, DDR memory, Socket 754 and Serial ATA. I hope to be able to provide some more specifics soon enough. I guess that Epox won't be alone with such a board but it looks like it will be an early bird. µ