Am hearing similar rumours of fleet changes. The version I heard was that all four A300s were to go, replaced by a mix of A330s and B757s - the latter on "flexi-leases" helped by the large number of 757s on the lease market at the moment. Probably sensible from a beancounter's perspective - standardise the fleet by getting rid of one type, get in some relatively cheap A330s, reduce winter commitments by taking summer-only 757s and cut some capacity out. Spotty M do appear to end up giving away (metaphorically speaking) blocks of seats to tour operators at very cheap rates on quite a few A300 routes just to keep the aircraft flying full.