New A320 stands- another good idea operationally, would allow more A320 movements at one time so would increase revenue. Not essential though, 320s can still be parked on the existing layout, just not as efficiently.
Just a simple question from an outsider. I suspect that you are talking about more than just repainting a few white lines and that more concrete is needed for more airbuses? I have watched new stands being created at Luton and to be honest it wasn't a big job. Just lots of cement mixers after scraping the soil away and adding base material.