Burrito Justice has some great links to the plans for the next Pavement to Parks project. The new plaza at San Jose Avenue and Guerrero Street has a couple different options planned, according to the San Jose/Guerrero Neighborhood website.
I'm instinctively hesitant of option #1's plan to "Narrow west-side sidewalk to allow a 14-foot median." Narrow sidewalks are inherently bad for pedestrians and wide medians make cars drive faster, which is also bad for pedestrians. The site does, however, include a good discussion on the differences between the two options.
But both plans include a large amount of reclaimed space where San Jo meets Guerrero at an oblique angle.