Leaks surround this new trade deal have shown that there will be some significant effects on copyright with impacts on creative professionals and consumers. Effectively this deal with make the eleven other nations* in the new zone align with US copyright laws.
Previously these nations differed in some significant ways. For example in New Zealand and India copyright extended 50 years past the life the artist rather than the US/DMCA's 70 years. (Japan did not pass this aspect of the agreement.)
Some countries held out on other points, for example to get a webhost must take down potentially copyright-infringing material upon receipt of a simple notice from the rights holder in the US, but this will still require a judicial order in Chile.
Other nations already well-aligned with the United States, such as Australia, will not experience any changes in the handling of copyright.
Overall synchronizing approaches to copyright and data handing should add the free trade of works including e-books, to the overall benefit of the industry. However authors and publishers affected will need to brush up on the new rules when they come into force in their jurisdiction.
* Australia, Brunei, Canada, Chile, Japan, Malaysia, Mexico, New Zealand, Peru, Singapore & Vietnam