Will there ever be another great knuckler?

After Tim Wakefield retires, the only true knuckler in the game will be gone.  Will there ever be another one?

There are probably some people that can throw it, but will there ever be another player where they throw knucklers 85% of the time or more?

In college I tried to hit a knuckle ball, and i struck out 3 times in that game.  He would get ahead in the count and then use the knuckle