I can't see Jericho leaving WWE for at least another year 'cause tbh I can't see him staying in WWE until he's in his mid 40's like 'Taker and HBK but and I can't see him leaving anytime soon and I don't think it would be the reason that he dropepd the title either. The reason I can't see him lasting much longer is because he has done nearly all he can for WWE and has feuded with most people there is to feud with so I am guessing he'll just have a few more feuds with guys he's never feuded with before, put over a couple of younger guys and then try and make a name for himself on TV and/or go back to his music career.