According to the article, (http://www.cnbc.com/2015/10/06/tpp-why-its-too-early-to-pop-the-champagne.html), it will take many years before the economic benefits of the TPP are actually felt. To start, there are several hurdles to overcome before it is implemented.
First, the deal must be ratified by each country’s legislature, which is looking to be very difficult in the US; both Democrats and Republicans are opposed to the deal, meaning it is possible that the TPP will be blocked in Congress.
Second, and finally, tariffs are due to be lowered and market access increased only gradually, meaning the effects of the deal will be insignificant in the near future. However, the long-term significance of the deal still should not be downplayed.