It looks like there is a new UCS Sandcrawler on the horizon courtesy of this rumor from Chowren Toys Facebook page.

Just got wind that in 2014 there is going to be a LEGO Star Wars UCS (Ultimate Collector Series) SandCrawler 75059. It will retail for $299.99 US. Not sure when the release date will be. I guess this is probably why the Cuusoo Sandcrawler http://ow.ly/rFQX9 did not get approved by LEGO.