The Federal Bureau of Prisons has finally updated Jonathan Pollard's records with an expected release date. His expected release date is one year from now November 21, 2015.
So, even if the president does not pardon him or grant him clemency, he only has one year left.
Of course he may not live out the year, he might be knocked off before they let him out, or they can change the date for whatever reason they justify, so it ain't over until it is over, but it looks like it might be over soon enough.