Well, I am trying to collect your point of views where you imagine the homeworld of the Shivans. As we know Volition inc. hasn't put any info about the origin of the devastators in the original database of Freespace.
Put your opinions here! Mine is that:
As the GTVA knows(supposes?), Shivans can live in Zero G environment, which stopped their evolution from advancing to the level of Humans or Vasudans. I think this only can be the nebula behind Gamma Draconis.
BUT!
The Great War(in 2335) begun at Ross 128, where the Lucifer struck down the system, but she hadn't touched any other systems before she made her strike. This can make doubts for my imaginations about the Shivan homeworld is truly the nebula. Because if the nebula were their homeworld, they wouldn't begin with Ross 128. Only if they have knowledge about a jump node between Gamma Draconis and Ross 128.
Please share your opinions with each other