Apparently there will be a collection released in October, but not much is known about it yet. From the topic Gamescom 2012:

Originally Posted by Drym'
I've just watched the new video about the impression after Gamescom: http://www.youtube.com/watch?v=ssjpa-jcSnw

And I saw an poster "Divinity Anthology - October 2012"!
But nothing about this now, on my habitual e-shops... except on Amazon...

Can someone tell me more about this anthology edition please? It seems to be an collector with very good items (art/story book, soundtracks). I would like to preorder as quickly as possible to be sure I can get one! :p

Thank you!