Just had a line check and the standards captain said the 76T fleet will remain a separate fleet forever until it is completely replaced by the 787 but over the coming years the the PS 757s and the 2 class 767s will be moved out of the 76T fleet and into the 756 fleet. The 76T fleet will rapidly retire it's 757s and then ultimately retire its 767 three class fleet but pilots in the 76T fleet will not merge with 756 pilots and will never fly the 767-400.

If true this might change things for some people. I have put a question into Rumor Central to see if this is true.