I agree on the dual rating point - there is no equivalent to an FAA CFI, I'd have to start all over again on the EASA FI ratings.
As I am to understand it, if the people teaching EASA in the US can do so unlicensed, yet to teach FAA in the EU I have to be also EASA licensed or do it for free, I am doubly disadvantaged.
Roll on April 2016. At least the US Military in Europe is exempt...