I don't see the issue with delaying it a bit. Let Del Rio keep it another couple of months before Ziggler refits the gold around his waist and actually gets his long deserved reign as champion.
The reason I like the angle of putting his title win off a little bit longer is because it puts Ziggler through more of an emotional journey - after finally cashing in his MITB briefcase, he suffered a concussion before his first title defense which perhaps cast doubt on whether he'd get to keep the belt or be forced to forfeit it if he couldn't return to action soon enough. Then he returns and loses it in his first title defense because Del Rio took advantage of his concussion and tried to end his career. But he gets a rematch twice and BOTH times, just when he nearly has the heavyweight gold in his grasp again, it slips away both times - the first time because his girlfriend AJ acts incompetently and gets him disqualified, so he feels the need to dump her and part ways with her, and the second time because she becomes vindictive over being dumped and actually costs him the match on purpose. And then out comes his former muscle Big E Langston to destroy him. Now he has to worry about the larger Langston being out to hurt him and punish him physically on AJ's command. That should be a nice underdog feud for Ziggler. And even when he gets the title shot again, I'm sure he'll still have to worry about both Langston and AJ being out to get him. (If he were to win it back at NOC, I could even see him having to defeat both Del Rio and Langston in a triple threat at Over The Limit.)
Point is, Ziggler's WHC win ends up meaning more to me if he has to go through 3-4 months of agonizing frustration beforehand rather than just getting it back immediately.