While ATI is still rolling out some AGP products, it looks like NVIDIA's G84 and G86 GPUs won't. FUD Zilla reports that there's still no solid news on the NVIDIA front that they might release a DirectX 10 AGP graphics card.
Nvidia's previous HSI bridge chip is not compatible with these chips and we know that Nvidia had to make a new one but are not sure if Nvidia decided to do that or not.
ATI DX10 AGP cards are around the corner and should show up any day now and the designs includes Radeon HD 2600 and HD 2400 cards. This will be a lot of AGP card for a little money.