I am very sceptical. In fact, I am so sceptical of Pedja being able to add to his game or to reinvent it that I would strongly advise him not to bother with adding new moves to his "repertoir". If I was his coach or adviser I would ask him to work on getting more comfortable in the post and in the traffic, which is basically strength, conditioning and willingness to give up his body for his team/teammates. Here's is why:
1. He will not be able to improve his dribbling. He is 6'9''/6'10''. That's 4-5 extra inches that ball needs to travel compared to an average OG. The only way that he can improve his dribble is by lowering his stance. Whether his back is bad or just inflexible his current stance makes me believe that he cannot do much there. Right now, he's basically just sticking his behind out instead of "crouching" into a stance. As far as dribbling goes, just stick with minimum required: one or two hard slaps of the ball against hardwood to either get position after faking his defender or to take off towards the basket. Please, no more dribbling around.
2. He is physically unable to get the type of lift off on his jumper that would make his turn around jumper deadly. There will be situtations that he will have height advantage and he will be able to turn around and get his shot off but nothing like an athletic SF could. Maybe he could use a weighted-belt in practice to get some more "explosion" to it, but that is just a placibo that boosts your confidence and does not make you Air Pedja.
3. Rebounding: Same as 2. He will not get more rebounds by simply lifting weights or working out. I think that at his age and with his body, more work will result in more strenght and stamina but nothing spectacular like Air Pedja. The only advancements that he can make in this respect is to be a more willing participant on the boards and to work smart. Positioning, boxing out, getting in the way instead of running out of the way. Again, we don't want him to get too agressive and to swarm the ball together with the rest of our front line as that would leave one or more of them out of position defensively _even_ if we make the basket.
4. Assists. I think that Pedja is a good passer as far as technique is required - hitting the hands of your guys with just enough zing. He is our designated inbounder. Now, if he could take advantage of double teams or other defensive movement (like lurking) that his shooting prowess provokes, here is an area where Pedja could make his teammates "better". Having watched him in 1st quarter of Game 5 (quick 3-4 assists, one by splitting double team), I am starting to think that even this aspect of his games can be automatically improved by Pedja being more "into the game". Just one advice here: Don't wait for the elimitation game to wake up and you will do fine. Talk to your guys and more importantly listen.
5. points 1-4 lead me to my real conclusion here: He just needs to be more willing to post up and incorporate post up by recognizing defense and going to the post, not necesserily to finish there but to create mismatches and if nothing else be in a better position to rebound. There is no specific tool that he can work on that would give him the type of advantage that would make him Air Pedja, but by simply being a willing participant he can throw a spanner in the works of his defensive nemesis and help the team.
Practice will help him familiarise himself with the post. I don't expect him to become a post up monster, but by simply being involved in post game he will add some much needed versatility.
Who knows, if he starts liking it he might get really good at it relative to his athletic ability.
On the other hand, if he develops a baby hook and enough strenght to push off...Oh, my!