(Yesterday, 2:49 pm)L469 YVK wrote But what will be used on the X21 though? 6x StreetDecks is not enough and IMO - will be a disgrace if GNE use ex-London B9TLs or any non NL63xxx B9TLs which have been run ragged on various routes.

I'd imagine it'll be the 6 Daimler ones being used on it currently, plus the 2 new ones (there's 6 at Riverside I'm sure). 

I don't know for certain but I still think that the ones on the X45 were meant to be on the X21 and the 6 likely remaining on the X21 were meant to be on the X45.

No doubt been swapped around to shut up local stakeholders.