Latest info I have, and of only a couple of months ago, is that having failed to sell them, they would still open to an offer, but as mentioned elsewhere they want silly money. They won't get it unless they find a wealthy 3ft gauge in England; a species unknown to exist (don't say "what about Southwold"; it is responsibly run and even if they HAD silly money (which they don't) they would not yield to an "offer" like that).
Meantime, they intend to store them, oiled and protected, until or unless someone with a bigger wallet than brain happens along; they will thankfully not allow them to deteriorate.
Both would be relatively easy to put back into traffic, mshould they or another buyer want to do so.