I don't think he has much potential to him.
I think becoming a third string center is pretty much his ceiling. I don't know maybe he can be a serviceable (below average but useful) fifth big in the depth chart.
I do think he'd make a solid third string center though which is good considering where he was drafted.
I think he could be a second string center. It is early to tell, but he has size, and seems to have decent athleticism. If he has decent hands (they looked terrible in the first game, and good in the third...did he play in the 4th?), he could end up being very serviceable.
I also will say that he does seem to have at least some idea of how to play basketball, which I wasn't really expecting. I have seen decent positioning, very good picks (mixed in with some terrible ones though), and an overall awareness.
I am at least intrigued to see him in the preseason, since the summerleague is terrible for big men. I am not sure he can't become a decent backup center in this league. And possibly even within the next couple of years. His body is there, he just needs to learn quickly.