Thom Hogan is predicting that Nikon will call it's EVIL camera line MX. (M for mirrorless? Or perhaps Micro4/3rds?). He says it's going to have a sensor smaller than the APS-C of current DX cameras.
He also says a D700S,D3XS, and D900, with 24mp are coming this year. The D90 replacement will be called the D7000(14mp?). Another "prosumer" camera will be called the D5000(18mp?). The entry level group will be the D3500 (D3000 replacement?) and the new MX M3000. He predicts that Nikon's entry level DSLR cameras will go mirrorless. The advanced amateur cameras including the future D300S replacement will be DX while FX will carry the Pro cameras.
I still think we will see a prosumer "affordable" FX camera. However the big problem with that is that it would kill the DX line. Why would I want a DX D7000 when I can buy a D90 like full frame? I guess we will see. In the mean time I'm still not buying anymore DX lenses since it now seems that I will also need to buy MX glass :^(