Horsebox,
Don't think there is any truth in that rumour. There are a couple 146's left in storage at EXT believe most are them are non-op no engines etc and just in storage however I think 2 have been sold saw one G-JEBA doing circuits the other day when i was in ext so possible handover flight. The Scatsa flights are primed for the Dash 146 would use too much fuel for it make a much bigger profit on the dash and more reliable.