There's no need for fuelling during the day, the diagrams are really quite low mileage.It may well be that there is scope for each set to go on the depot during the day with time for fuel and tanking.
If you look at the current diagrams, each of the three sets has at least 90 minutes idle and in some cases more than one long wait in Scarborough during the course of the day.
How that will change in December remains to be seen but I'd guess that, bearing in mind that you only need to service 2 sets for the first two departures each morning, servicing during the day could be an ongoing possibility.
There's a difference between not being used and being closed.So is the depot being closed, then? Shame it'll I guess mean local job losses.
There is certainly still a need for stabling and fuelling capacity round those part; I am sure it will find a use.