My primary concern with an even bigger league is that it becomes harder and harder to make sure that every team plays each other home & away (and selfishly, as a Rangers fan living in Colorado and spending lots of time in CA, I like knowing that I'll have many opportunities to see them play live). That might just be the reality though. There are a handful of markets that I'd love to see have an NHL team (Portland, Houston, Cincy, amongst others).
EDIT:
Option 1: 4 divisions of 9 teams. 84 game schedule.
- Play each divisional opponent 6 times (6x8 = 48 games)
- Play each non-divisional conference opponent twice, home and away (2x9 = 18 games)
- Play each non-conference opponent once, alternating home and away each season (1x18 = 18 games)
Option 2: 6 divisions of 6 teams. 82 Game schedule.
- Play each divisional opponent 8 times (8x5 = 40 games)
- Play each non-divisional conference opponent twice, home and away (2x12 = 24 games)
- Play each non-conference opponent once, alternating home and away each season (1x18 = 18 games)