(19 May 2021, 3:25 pm)L469 YVK wrote E400MMC would be good middle ground. But other than perhaps 6043-48 being replaced by newer surplus B9TLs, I doubt GNE will replace 6071-83 given that they're a heavy duty vehicle type. Most likely a deep refurb if anything.
If GNE were to target mass B9TL replacement, no doubt it would either be the 56 or Cobalt & Coast. B9TLs are overkill for both of them routes.
Oh definitely, I think the most we'll see is them getting the same basic refurb as the 56. Maybe, they might do the same as the Cobalts since it's a longer distance route but I personally can't see that happening in the current climate