There are literally an infinite number of trick variations, so 1000 is definitely possible. If anyone can hit 1000 it's him.
Start with as many 'basic' tricks as you can imagine, (

)
Then you can add additional spins (fs or bs), additional shuvs (fs or bs), additional body varials (fs or bs), add additional flips (x2/3/4), additional cancels/underflips/rewinds/crossfoots, additional late tricks (kickflips, heelflips, fs shuvs, bs shuvs, one-foots, varials, underflips, literally anything.)
You can compound these with each other and multiply the number even further.
Then another x4 for all stances on top of that number. The actual limit is probably upwards of like 4k+
Edit: Did a little math since I had too much time to kill at work. I'm sure this is flawed but you get the idea. Obviously there is an upper limit to what is feasible, nobody is doing Blizzard Flip Late Flip Reverts, etc.... But the variations make the numbers multiply very quick.
