So, the safest bet would be to check with all member states that you intend to visit whether or not they have applied the derogation to 1178/2011, and if so, for how long. The UK CAA have clearly lost patience and have dovetailed their implementation date with that for Part NCC compliance ( for remunerated third country licence holders).
I would also check with insurers as to their stance; they don't need much encouragement to duck out of a claim!
AP