Both the Q200's and the Q300's are being replaced by the Q400 - the first Q200's are due to depart next spring.
At the moment we have 2 Q400's that LCY modified and we should start training the crew's for LCY operation over the winter - all future Q400's that we will receive will be sent to us with the mod's completed for LCY operation.
Yes the 146 does do I.T work over the weekend to the likes of DBV/BIA as well as our scheduled services to the continent.
regards
W.G.