AimBot will attempt to correct the trajectory of an arrow launched by a player to best hit the target you are looking at. Arrows will not home in, they are just fired in the correct trajectory in the first place. If the velocity you fired the arrow at is not enough to hit a target then no corrections will be made.
If you want to see something else done with projectile motion, please make a suggestion. I have already used this to add TNT cannon detection to PlotSquared. In future I will be working on a auto turret plugin, if you have any ideas on how people would be using turrets, please let me know.
aimbot.instant - Use left click to instantly fire an arrow
aimbot.auto - If your arrows are automatically corrected