(10 Feb 2022, 8:19 pm)Train8261 wrote Confirm on Facebook that 1/2 will move to Ashington depot on the 22nd of this month

That's incorrect. 

The 1 is moving on Sunday the 27th, with the 2 following at the end of March (also the 27th I believe).  

Arriva's rotas work Sun-Sat iirc (hence why any service changes come into play on a Sunday), so it would be chaos moving work on the 22nd (a Tuesday).