are the inside of pockets now lined in chevre?

Yes, from this year the inside of the open pocket in the Birkin (I don't know about other bags) is lined in chevre. My Vache Naturelle Birkin bought in January, but still stamped J, still has the old lining; while my Clemence Birkin bought in April has the new pocket lining. Both bags were bought at H......
 
Yes, I have bought several K stamped bags this year directly at H, and the open pockets of all of them have been lined in chevre. I have seen at least one K stamped bag at H that didn't have a chevre lined pocket though.