Even though the Tony Hawk games are extremely fun to play and cool I reckon there are a few more improvements that could be made. Some things may be impossible right now, but in the future I reckon they could do it.

The levels should be way bigger and like you can skateboard inside houses etc. And there's people walking around and other skaters. And when you skate close to a lady or someone they will yell at you.
It would be great in the create-a-skater function if you could upload your photo so it looks like your skateboarding, or a computer-generated you.
The game would be better if there were alot more obstacles to use in the park editor and it would be could if you could create your own.
This would be the perfect Tony Hawk game for me.