[Mr. Johnny 5]

Spoiler:

I think he still can...he showed it with the handshake right?

Naruto is still a little afraid of Gaara's unexpect actions..he felt something (sand) and by reflex almost took out his kunai..

Now Gaara would've scared Naruto to death if he used an huge arm that would grab naruto and force him to handshake Gaara...also i believe that no one except naruto saw or felt it what Gaara did...but it was also better that way...

Gaara without sand seems highly unlikely to me...but...we'll see..if i am correct or not