Thinking quite clearly madly for a minute here, but if the 360s were to be transferred to another TOC and lose a vehicle, could the redundant vehicle be rebuilt and refurbished to act as a trailer coach for a 185? Ok so it would only mean that 5 185s could finally gain the long proposed 4th coach but it could help some of TPEs capacity problems?
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Actually, that has reminded me of one of the North v South arguments that the North never has any new trains while the South East get's them all. Er, not in my neck of the woods where we should be complaining - TPE got our 170s (which by coincidence could be heading south again!) and 185s, while we got ex TPE 158s and 159s. For fleet standardisation and a good refurbishment to follow obviously!
Anyway, enough of that! Thanks for that HEX link JamesRowden. I wonder how the western chord services will be planned out in the end, what with talk of IEPs, HC and brief mention of a Basingstoke>Reading>Heathrow>Paddington service all utilising the proposed western chord. If HEX do get their proposed services, then it looks like a safe bet that the 360s would be retained for these.