From what I have seen on other boards, it will be court, fine and points. If you had had an accident, it would have been a different matter.
Just don't drive on your own again until you get a full UK licence.
If you get a provisional licence, you can only drive with a driver over 25 who has a full licence, L plates and insurance (you have to be named on the insurance policy as a provisional licence holder).
When you get your points, you are required to inform your insurers. Not to do so will also render your insurance invalid. The insurers will decide if you have to pay an increased premium.
All drivers caught speeding on a foreign licence, have to go to court apparently.