Written Option 2:

Surely the rule that must be changed is one of the most antiquated in the league. In fact, the rule change that I propose would come in conjunction with an arena modification. 

So, first off you'd need to enlarge the playing surface. You could go for the international rink size or even bigger if you wanted. Whether or not this is logical or attainable for teams to do in their current arenas, that's not my problem. 

Now you've got this massive playing surface. What rule change could warrant this drastic alteration? Why just have 5 skaters on the ice at one time? Let's just have both teams have their whole teams on the ice at the same time. Ooh, or go Royal Rumble style. Start each period with one player from each team on the ice, and then every minute of gameplay another player comes over the boards until every player on the bench is on the ice. Think of the absolute chaos. 

This would, in effect, create another rule change by essentially eliminating the need for icing. What about penalties? How would a team gain the advantage for a power play? We bring in the old school rules of Freeze Tag. The team on the power play is allowed to designate players from the other team that must remain frozen until the penalty expires or a goal is scored. 

Are all of these ideas horrible and essentially creating a whole new sport entirely? Yes, probably. But let's just enjoy watching a massive game of Red Rover on ice and not worry about the semantics.