I'm almost ready to re-roll a Guardian just for the sake of playing how I wanted Shiro to be for Revenant. In fact, that was my main reason to go for Rev: when Shiro was announced as a playable legend I just couldn't help it. But due to the profession's design and legends available to us, we just can afford to play like Shiro (i.e. high-mobility, high-damage) half of the time, and choosing between being a boon-bot or a charr ritualist the rest of it, and that is if you want to have some synergy between legends.
I want to know what you think if you have already tried Willbender. If Rev's e-spec ends up being something other than a power legend to pair up with Shiro, I think this expansion will be the end of my path as a Rev main.
Edit: Just saw we are probably getting GS, so there's hope. I'm sorry for those who wanted a second ritualist-like spec for Rev.