Thameslink now have Passenger Hosts vice Revenue Protection staff, and have done since last year. It was brought in very quietly, and I am reliably advised that the role of the revenue staff hasn't changed much, just with a few extra items of training on things like wheelchair ramps. I don't believe they are diagrammed to specific trains. It's not quite that it was introduced in name only, but almost.
All Southern revenue staff and a number of their conductors have been converted to the OBS role, which is rather more of a difference for the Southern revenue staff, as it involves compulsory diagrammed trains and little station-based work.
It should be noted that unlike what some GTR press releases (and their Twitter account) say, not all conductors were transferred to OBS roles. However, all former Southern revenue staff are OBSs.
Station staff at certain locations may still become Station Hosts, which is the proposed role for roving staff within stations. This is currently being trialled at a handful of stations. I am glad it is being trialled in a fairly controlled manner and I have to say that, with the right security systems in place, I think it could be much better for stations than the OBS/Passenger Host roles on trains.
) it would be something like:
