I checked the shaman first because I main a shaman. I wanted to check to see if the level 90 talents were in, and by golly, they were! Our premade characters were only level 85, so I couldn't test them out, but I did write 'em down for you.
One supercharges your Unleash Elements to provide a much better bonus for each imbue type.
Another removes the cooldown on your Fire and Earth Elemental Totems and allows you to control them.
And the last is a blast of elemental energy in a cone on a 15s cooldown.
Bear in mind that talents are still being worked on and these may not be final. I also may not have remembered the nuances of each. We couldn't take screenshots, so this is the best you'll get until they update the talent calculator.