According to the list posted at Sunrise Records, there will be an Interpol 2011 remix vinyl EP released exclusively for Record Store Day on April 16th.
Update: Looks like this release will be a 12" with remixes of 'Try It On'. No listing for it on the US or UK RSD list, but it's on the list in The Netherlands and mentioned for Mexico. (Thanks PQSM)
Update 2: According to Rise Bristol, it will be on red vinyl and limited to 300 copies.
Update 3: Interpol have posted the details (and a free download of the Salem remix) on their news page - "We’ll be releasing a Limited Edition 12” Vinyl-only Remix EP on April 16th as a celebration of Record Store Day in Europe. The Remix EP will receive a North American release in the later part of the summer. The EP features remixes of “Try It On” by Salem, Ikonika and Banjo or Freakout."