It does beg the question though, and digressing away from the original topic, as to what is going to replace the Midland HST▸ 's post 2019, given the delay in completion of the MML» electrification north of Kettering to 2023.
There are several options, none of which are ideal. The last RAIL magazine had an article suggesting the use of a HST power car with Mk4 coaches. Personally I think the easy option of just allowing some HSTs to continue beyond the 2019 deadline will be what happens - we know the SoS for Transport has that power if they wish to use it.