The 3.0 Souls have been confirmed for Patch 2.7!
MMORPG.com was able to get exclusive information on the Warrior’s healing soul – Liberator. In the article they mentioned that the 3.0 souls will be coming out in Patch 2.7. Daglar has since confirmed this.
You can check out the article here, which also includes lore information relating to the Liberator soul.
As mentioned in the article, Rift’s website will have further information, including explanations of Soul’s abilities. Information on the other souls will begin appearing in the coming weeks.
Note: Some of the information they have provided seems to be inaccurate or out-dated – such as mentioning that the Liberator soul would “draws his healing power from wading into combat” which soul testers such as RoughRaptors and Muspel have confirmed as being false.