Rhett Workman, American’s managing director at London Heathrow (LHR), discussing AA's partnership with BA. In the discussion about efforts to work closer together, Rhett dropped: “it’s really exciting to be with BA in the same terminal in Terminal 3 and, potentially in the future, Terminal 5.”

"Nothing is in the works yet, but AA has made its intentions very clear to British Airways and Heathrow that it wants to co-locate with BA in Terminal 5."

Link to TPG article:
https://thepointsguy.com/news/americ...ow-terminal-5/

Just wishful thinking, or is this a practical idea?