Hang on a minute, I know NSF are going and I will take it on faith that a few others have left but I saw plenty of aicraft hangered there. There was some quite interesting suff as well, tigers, stearmans, a Yak 52 and a couple of chipmonks.
In addition there was quite a lot of rotary activitty and microlights all over the place. I have heard that the warbirds have all gone from Sywell (sold off, the owner didn't leave) but I do know there is a gentlman with a harvard based there during the summer.