New advertising has come out that reveals how long each retailer timed exclusive, will in fact, be exclusive.
Best Buy will have the Ralph toy box figure exclusively starting November 22nd through the end of 2013.
In addition, Walmart has updated their Rapunzel listing with a new release date of November 22nd. While there is no proof of when the exclusively ends, you could reason it will be December 31st as well (as you will see below with Vanellope).
Finally, Vanellope will be released at Target on November 24th and will also be exclusive only at Target through 12/31.
Photo Credit: Disney Geekerey and CAGScorch