The upcoming AMD 890GX integrated graphics is AMD Radeon HD 4290. It supports DX10.1, UVD2 and has its GPU core running at 700MHz. Basically the GPU performance would be similar to the AMD 790GX.
The release of new boards based on this chipset is to support the upcoming hex core or 6 core processor Thuban. In addition, the upgraded south bridge SB850 will support native SATA3.
Some manufacturers will enhance their board with USB3 through add on card featuring the NEC chip.