Shen Support
I feel like, based on my own and some others opinions, that shen's power as a support was severely diminished with the changes to his Q. Before he had poke and could actually heal his laner with coordination, which was a big part of shen support being viable.
I think now that he's much more shield based, he could have some interaction with his taunt being able to be used defensively.
Something I had in mind was "If shen passes through an ally and has an active Ki Barrier (i.e. he's got a shield from his passive still on him) he grants his ally a portion of whatever the current shield value is at."
This could apply to the first ally passed through or all allies, but I think it would be a little extra something to allow shen more options and abilities to help his lane partner without impacting his solo laning or jungling much at all, and allowing him to be just a little more useful in teamfights without needing too much gold (see: shen in the support role) to be an asset.