I wonder if there'll be any changes to the X21. It's likely that they'll bring back the Newcastle-Durham shorts as things return to normal, but I do wonder if they'll pull the West Auckland extension. It seems to have decent loadings but nowhere near what the Arriva 6 gets.
Similarly, I think there's a good chance the 21 extension to Brandon might be back on the cards
RE: Go North East: Upcoming Service Changes v2