Couldn't tell ya. There's a chance he will get over it, a chance he will warm up a little bit but not all the way, or a chance that he could be feisty til he's old.
One of my leos will dash to the nearest hide if I go near, and another will sit there and arch his back and wiggle his tail whenever I go near him or pet him. My first leo ever(I had him for like 5 years til we moved and I had to give him away) was like a beardie. He would hang out with you, wouldn't complain about being petted or picked up, he was a bro. They're all different.
I'm sure he will warm up at least a little if not all the way if you work hard to gain his trust.
