Defra is trying to revive a coalition of support for radical reform of the CAP, holding meetings with Sweden and Denmark: Reform
Of course any coalition would need a broader base of support. In the past the Netherlands has joined in and at one time a particular political conjunction in Italy which no longer exists attracted their support. Liberally oriented former Communist states might also be supporters, but they will be hoping to get higher payments out of any settlement.
In any case the real obstacle to reform is the determination of France to maintain subsidy and protection. It usually has the support of Germany as part of broader political trade offs.
Of course, if the eurozone crisis deepens, as it threatens to, all bets may be off.