
Originally Posted by
Kimera757
I think Duran used Infested Kerrigan as his "research notes". The Overmind was dead, but its work in successfully creating Kerrigan was still there.
Furthermore, Blizzard has said StarCraft II will explore Kerrigan's true role in the Swarm. Perhaps she thinks she was made to be the second-in-command or something like that, but in reality she was a template for when the Overmind would have successfully assimilated the protoss. This could mean Duran realized, from his investigation of the Overmind's notes (which he could have done while being Kerrigan's right-hand-man) the only way to create hybrids was the way he was using in Dark Origin. (This is quite different from the way the zerg usually would have done it, but also seems different from what the xel'naga wanted.)