I very much hope that this is not what happens, i.e. that we aren't all given a new membership year based on the arbitrary date Accor picked to implement their rule change.
Ah, that might have been misleading, sorry: I didn't get an absolutely clear answer, which date exactly will be considered for status - it will either be the date at which you reached 25'000 points/60 nights, or 3rd June I imagine.
It seems generally (to not much surprise) that they don't quite have their sh..tuff together in this.
Oh, IF someone from Accor ever finds this thread: could you please make sure that CdA (gold, or CdA + earned Plat status) is actually recognized properly by all hotels? I've written about this to Accor too and only got "maybe your status has not been properly updated in the hotel's system". And I still encounter quite a few hotels which seem to be having problems with it (yes, including those which usually don't pose any problems according to 'real' Plats)