Congrats bro thats fuckin sick....Arena league is hot that shit is FAST! Its a whole different ball game. Your doing alot a good shit for speed and agility thats what you need, you gotta be strong but if you have good technique and you improve your feet your gonna do just fine. Only thing you need to incorporate into your workout is hill running, find your ass a nice big steep hill and run up and down that shit, assitive and resistive running.
Good Luck
Good Luck