According to a report from Nigel Jaquiss of the Willamette Week, the Portland Timbers are looking to add 1,000-2,000 more seats to the South End of Providence Park in the next several years.
There are several hurdles for the team to clear before any work could be done. The addition would have to make sense from an economic perspective for the team, but also would need approval from the city and from the Multnomah Athletic Club.
The expansion, according to team president Mike Golub in the Willamette Week article, would likely not done before 2018.