One would imagine they be looking at a huge future replacement for all the pulsars in general. Unless they are going to pick and grab from depots elsewhere. Personally, I would go for E200 MMC's for the X12 as they are great at getting up to speed and would suit the long distance quite well. I would imagine Evoras will be also got for Stockton's 5 and 5A Services because of the hill climbing sections. But who knows, time will tell.