There is no specific support for Maya in AE. All there ever was was the Maya camera importer and of course support for the rendered output. I'm sure there is some scripts or plug-ins out there that can extract more scene data as Nulls and such, but otherwise there's really not much. Even if you were to export a Maya FBX and import it into Cinema 4D you'd still need to tweak and polish it to produce an acceptable result. such is the nature of the whole affair...
Mylenium