Goal for Next Season...If it is Possible

So now that I officially own all 139 champions I wanted to try and earn a chest on each champion in one season's time. Is this even possible though? With 139 champions (and more to come) and 52 weeks in a year (hextech chest resets once per week) that means I would have to earn 2 and a half chests each week. Not sure how everyone else feels but I am disappointed in this. I think RIOT should somehow make this possible. Would be a fun goal to the game when I am playing normals with friends and family.

Everyone else's thoughts?