On GOG.com, the collector's edition of D:OS was not released, however all of it's content was, just as separate packages (D:OS and Source Hunter). Buying those two gives all the content of the D:OS Collector's Edition.

People who had purchased both Original Sin and Source Hunter should have gotten D:OS EE Collector's Edition, I think, not the standard edition. There is no way to upgrade to it either. Is this something that can be remedied?