It's a plot by the Democrats/Republicans to issue the DVD just before/after the November elections. 1

Grapes of Wraith is scheduled to be released 4/16 per digitalbits
http://www.thedigitalbits.com/#mytwocents

Yeah, and did you know that Steinbeck and Tolkein co-wrote a sequel -- "Kumquats of Ringwraiths"?

Well as long as they put it on hold just to make it a better quality product. There's no excuse other than that, for making a classic such as this, not come out when scheduled.