Guild Wars 2

Will traits also synergize with runes in the same manner that they interact with each other in the new patch? IE Thief has a trait that drops a Needle Trap when he uses a heal skill, and Superior Rune of the Trapper grants superspeed and stealth when a trap skill is used. Would the thief therefor drop a needle trap, gain stealth and super speed all from a heal skill?

it seems so yes. They are specifically making traits trigger other skills as opposed to just have an effect so that they interact more with other traits, runes etc.

I believe so, yes.

I believe that was one of the reasons behind having it do so so they could make more rune sets so there would be more builds from runes instead of just like a few rune sets out of the many we have being of any use.

A very clever change.