Not to be a naysayer; I wish the new owner well.
But why would you drive to an airfield rather than take the train and be in Central London in 2 hrs from Leeds or York? Unless of course they can make it cheaper than the train. Which doesn't seem likely to me.
I regularly take the train from KGX to Grantham when in the UK. It is cheap, quick and comfortable. Leeds is a bit further north, but not much by train. I sure as hell wouldn't take the Underground/DLR or whatever to LCY and pay more to fly.
I just don't see the business case, unless you live within 20 minutes of CF and your office is close to LCY.