I did the Donington day last year and really enjoyed it, and was chatting to one of the guys about Oulton Park and asked if there was a MGoT day there as I'd love to do one but to my surprise there wasn't!
I was wondering if it'd pop up this year but nothing as yet and I was wondering why not? It's a great circuit to spectate at (I've been lots of times to see the BTCC and support races there), anyone who's driven there, racing drivers and journalists alike seem to rave about it ('mini Spa / Nurburgring', etc.) and given some of the lesser known circuits that do get a track day, Oulton (and us) miss out!