A potential idea for the long term perhaps, but if sitting in an aero-tuck on your turbo, could there not be a feature to use a game controller to control steering (and powerups, signals,braking etc.)? Or looking extremely long term how about developing a left and right hand controller you could fit over the hoods of the handlebars? Personally I think that would be a big advantage for indoor training as steering is something to take your mind off the suffer fest.
P.S. I’ve done this while playing driving simulators, it is a good larf.