Before Covid, there were 5 sets of Chiltern 68s running, one of them being the slam door set. As of now there are only 3, all being the express with the Commuter slam door set having disappeared. Does anyone here know, 1. If the Chiltern Sets are completely withdawn soon, 2, if not will they brig back all 5 diagrams, and 3, what happened to the Slam Door set and if it will ever come back. Thank you