My BCM's and also my Wheatens are going through the same thing, I have found to look for their combs to turn red again, I think it takes quite a while (several months) unfortunately. My BCM breeding roo twizzler started molting about 2 1/2 months ago and he has still not grown back the feathers, poor guy he looks like a shrimp version of his former self.
BTW: I am considering scrapping my Wheaten flock and starting over, they lay nice eggs and look great but they are making chicks with a BTB look to them and i feel like there was some mix up with the starter chicks i bought. I have switched to a different roo and will hatch one more batch just to make sure it wasn't the roo, and then if that doesn't work out i will start over...

. I guess i could try separating them and marking individual matings but problem is if i move them the hens freak out and stop laying.. scrapping would be kind of a waste of my invested time but i need the space i have several up and coming birds that could really benefit from having their own breeding pen that the wheatens are now occupying...