In message , at 13:12:22 on Sat, 14 Dec
2013, " remarked:

What is Mail Rail's future at this point? It's still a valuable asset.

Hasn't it been severed by Crossrail?

My guess, however, is that it will only gather dust, the rails will
become unusable and that it will simply fall apart.

Because neither the sources nor sinks of its traffic are relevant any
more. Good to preserve half a mile as a museum though.
--
Roland Perry