If Riot simplified Lee's kit by removing something like ward jumping...
He would need buffs to his upfront strength and base stats since a large part of the reason why he seems to be tanky is just because he can duck and weave out of fights. If Riot were to simplify Lee Sin, he would end up getting net buffs in the hands of 90% of the players and his winrate would rise greatly in the lowest levels of play, and probably rise in every level other than the LCS.
He would become more popular and powerful unless Riot decides to just gut him and leave him both with inferior upfront power and his now-bad mobility. Riot doesn't seem to like gutting champions directly so that isn't likely to happen.
