We have been waiting a long time for the Sim to appear at Woodford. It will save us all (except the STN crews) from the long trip south to the sim housed at Gatwick. Last I heard it was to be operational from June/July and is coming all the way from China.
I suspect that the 'deal' to look at OAA cadets meant that they negotiated a few more quid off the contract.
CTC is pretty useless to Jet2 now, since they sold their 733 sim a while ago. The 757 training has always been done through OAA (GECAT).