I would as noted above be very strongly in support of EWR being called that, though it might really have to wait until the Cambridge part opens, as he doesn't have a particular connection with Oxford, Winslow nor Bedford, so until the Cambridge part opens you'd be as well calling the south WCML stoppers** that. (He does have a connection with both Bletchley and Cambridge).
A good start would be to name one of the units after him - that would be easily achieved - anyone here work for Chiltern and fancy throwing it in as a suggestion? I long thought a Marston Vale unit* should be named after him but that fell by the wayside with the problems with the 230s.
* There being three of them I'd go for Turing, John Bunyan and one other - though to avoid bias you'd have to find someone connected with both Bedford and Bletchley - but who? Perhaps just in memory of a Bletchley driver/guard as you sometimes get, or something.
** Under Network SouthEast the south WCML AC services had the rather unimaginative name of "Northampton Line" - I did think they could have done a lot better! The symbol did contain reference to the Grand Union Canal, so maybe the Grand Union Line or the Canal Line would have worked better.