The loaned cars went back to their owners (the Williamses to Williams, the Jordan to EJ, Force Indias to Jordan/Midland/Spyker/Force India/Racing Point/whatever-they're-called-this-week, etc.) and Tom Wheatcroft got the part that was owned by the Wheatcrofts. The Wheatcroft family is hoping to find an alternative location to display their part of the collection, and in the meantime some elements of it are "on tour" (at least one Indycar in the collection is currently in the States because Stefan Wilson mentioned it a few weeks ago).
I don't think it's the last time we'll see the core of the collection, though I doubt we will see anything quite like the Donington Park museum for a long time.
I have a bunch of rubbish photos on my phone, but I still haven't sorted out online storage for them. (I realise there are photo collection sites out there, but it seems silly to do so when I already have my own site and am trying to figure out which options I need to add my photos plus a Sims 1 website - with a distinct domain to my Fisichella forum - without confusing my domain/site(s) host...)