I think to get away from 3x3 mini hockey deciding playoff percentages that we need to call games ties that end after 60 if you aren't going 5x5 in OT. Anything that comes after that shouldn't be considered a win in the NPI or a loss. Have your 3x3 and your shootout if you want to, but the game is a tie for the records. I think you'd see more teams press to score a bit more in the 3x3 if they had less to lose from it.
Best of 3 first round playoffs. Reseed, best of 3 super regionals, then the normal F4. If your arena isn't available its on you to find a backup and make it work or play on the road. I mean lets act like this is a D1 operation here, and I hate the argument that "hockey is different because of Arenas".
I'd also like to see a player impact panel, where the kids can voice their opinions on some game play or rule changes they'd like to see. Team Captain serves as the rep, leave the coaches out of this one.