I think I saw 313121 (maybe it was 31321x) at Wembley sidings earlier today.
It was painted in Silverlink colours.
I thought all the former LO ones went off to Southern or FCC ?
Even if it does go to the shed you are referring to, it won't go on the DC; the access is via a connection off the carriage lines.If that is the place you can see from the DC lines, then it will be 313121's last trip in Silverlink colours along the DC lines?