Well if the E400MMCs stay at Consett, they'll cover the X30/X31, X45/X71/X72 leaving 2x spare.

The 8x StreetDecks will then no longer be required for any XLines work out of Consett as such. Therefore given their high spec inside:

- 6356-63 + 6333 - X21
- 6308-13 - 47
- 6314, 6334, 6335 - Riverside spares for 21/X21
- 6331-32 - Washington spares
- 6377 - X1 (joining 6364-76)

Or......if the X30/X31 go standalone with evening & Sunday X30/X72 journeys ran by Riverside interworking with the 6 & 12:

- 6338-40 - X30/X31
- 6341-42 - Consett spares
- 6343-51 - X21
- 6356-63 + 6333 - X45/X71/X72
- 6331-32 - Washington spare
- 6377 - X1
- 6308-13 - 47
- 6314, 6334, 6335 - Riverside spares for 21/X21