3.1 will bring the next 24-man raid... And if the past is anything to go by, the ilevel for drops in that raid will be i200. With a loot lockout of one item per week.
Making Esoterics uncapped around the same time does not really make sense...

Esoterics will likely go uncapped only with 3.2. It is however possible and reasonable to increase the weekly cap with 3.1.