Well, LCH have decided to extend my assignment until June. I also know that they've been having difficulties hiring a permie for my role, which is not surprising given that most people with the technical skills and background would prefer to work in a development role.
Beyond June, my suggestion of offering part time consultancy is being taken seriously. This would be very cool.
I'm feeling much more motivated at LCH, and I feel I am being listened to and taken seriously.