I don't think it's the end for Britain or Albia at least by Lu's hands. Albia is a Power, she knows who the Other is, how she works and is royally ticked off (pun intended). The only Lu (ClankLu) we know of no longer has control of her body and has limited resources. Worse Albia can take away those mny of those resources (anyone who is wasped). Lu should be on the run for the moment as she does not want Albia to get her. The only threat would be the Conspiracy and I don't think they are ready to move, even if they really could due to Albia's mind control. Looking back even Snackleford didn't want to take out Albia. He wanted to demonstrate his new power, but also didn't want to make a bad impression on her by killing Agatha.