"...likely that the fleet will be retrofitted with the Rotax 912 engine"
As one poster mentioned previously, there are serious H&S questions regarding the pre-flight prep of a 912. For the first start of the day, or after several hours of inactivity, it is necessary to turn the prop until the oil reservoir 'gurgles'. I have heard of at least one instance where the damn thing fired and almost took the arm off the hapless pilot concerned. The problem lies at the mag switches which build up carbon over time and end up 'ign on' despite being selected 'off'. As for the 912 engine, it is a dependable bit of kit, but what is wrong with the existing engine ?