If you had applied in March for the status match to FB Platinum that your BA Gold entitled you to, you could now apply for Lufthansa Senator on the basis of that match...

I'm just wondering if LH will next set up a status-match program aimed at BA members...

(I don't know if you know, but British Midland will most likely match your BA Gold with their DC Gold, which is *G. See the appropriate thread in the British Midland forum)