Bring Back Old Shen
So I've been waiting it out to see if he has any real niche I haven't observed but it's still not there. New Shen is completely useless, his damage spike of his empowered Q does very little damage compared to other tank damage spikes, he has no sustain anymore thanks to the removal of vorporal blade. Shen's AA blocker is incredibly niche for someone who is supposed to be a top laner where most people cast spells more than they autoattack. Shen overall is never good by himself and only serves as a wall of meat when teamfighting, and even then you could pick a better wall of meat like Mundo. Shen's new kit is completely outclassed by all of the other toplaners and his only real strength at the moment is a tiny bit of lockdown and his ult being able to save someone if he gets lucky.
Shen lacks the duelist status he once had in his previous kit, instead of being able to heavily outsustain the enemy, he now relies almost entirely on teammates to help him get a kill, which should not be something a toplaner relies on as Top Lane will get ganked the least often out of the three lanes. In the jungle Shen is outclassed by the likes of Vi, Kindred, and Jax, and in support he's outclassed by Leona, Thresh, and Braum.
Shen has nowhere to go because he doesn't excel at anything in the game anymore.