So I've read into the soul system some and apparently we will be able to set 4 completely different presets for our characters. It'll most likely cost money for each of the presets but what they are is a custom skill build for each situation you need to use them for. For example you can have Build 1 be a tank/meatshield with Reaver/Paladin/Void Knight, then Build 2 be a Reaver/Champion, and Build 3 be a Champion/Paladin. You get the idea, Build 4 can be whatever. Then right before a raid or right before a pvp match you can instantly change your skill build to one of the presets and change it back afterwards.
Rift Planes Of Telara
Kinsume - Level 0
Defiant Bahmi Reaver/Paladin/Void Knight Tank
Guild : eXotic Occult http://www.exoticoccult.com/