Any news about this?
I heard CIYAM (the developer of AT for NXT) was upset with the core devs of NXT and won't implement his AT to NXT. But nothing more than that.
Is he thinking about including it to NFD?
Yes, NFD is one of the candidates Ciyam is considering if Nxt is not using AT. But AT needs to be put on the testnet to test first. They are working on the testnet right now.
They are working on which testnet? NFD or NXT?
NXT testnet. They have thought to outsourcing this tests to other coins, based on NXT like NFD. But they want to test it first, for themselve. And if the tests looks nice, secure and all, our dev's could implement it. But at this stage, there is a great unknown security question and so on.