i think jayce is a really fun champ and I feel he doesn't get some off the love he deserves I think he would see a lot more play if he got a slight boost to his jungle because I think he could be a viable pick if he had a slight buff to w's damage well in melee form to monsters. I think this would help he clear time enough that he could be picked and having a ranged ad champ in the jg would be cool.
Please check out my Jayce thread and post your opinion on this matter.
http://boards.na.leagueoflegends.com/en/c/gameplay-balance/Mb6m2YxT-lets-talk-about-jayce
The problem with Jayce in the jungle is that he would be SUPER OP. His QW combo coming out of nowhere would be worse than the stupid Nidalee spears since there would be zero chance of dodging them. This of course would lead to more nerfs on Jayce, which I'm pretty sure you wouldn't want.
