Well it's not like he controled sand, he controled the sand that was mixed with the jinchuuriki... it was pretty much a part of him. That's not to say that they won't have jutsus that use sand, but it's like he'd be able to control sand like we've seen him. We'll probably see him control sand much like someone from the rain village controls water and how the Uchija has their Katon jutsus. Not a given, but there's surely a way.

But as Assertn said, he wont have the automatic self-defense. That sand had a mind of its own because of the demon. The real question is, how strong or weak will he be, and if he'd still be considered Kazekage with the current strength he'd have.