I just read the thread https://www-secure.symantec.com/connect/forums/ghost-solution-suite-or-wds which contained info from a product manager claiming a new version is under development. Has any additional annoucement been made ?
This is the most recent thread:
https://www-secure.symantec.com/connect/forums/when-will-come-new-version-ghost-gss-30
If you note the product managers name and click on it then it will take you to his postings list, so you can keep on eye on developments that way.