There's been a lot of speculation about expanding the playoffs to 20 teams, an idea I am very much against. The playoffs are long enough as it is, why do we need another round? I think that, if anything, the number of playoff teams should be reduced. One idea I think might work is using the system that was used from 1975-79. 12 teams would make the playoffs; four teams would get a bye and the other eight would play best-of-three series in the first round. I think this would leave enough spots for upset teams to emerge, but also make the regular season more meaningful.
P.S. Why did the NHL allow 16 of 21 teams into the playoffs in the 1980s? I know upsets are a big part of an exciting playoffs, but it kinda cheapens the regular season when under-.400 teams can make the playoffs and good teams can coast knowing they have a virtual guaranteed spot. Not to mention the logic problems in playing 80 games to eliminate 5 teams and then play 5 games to eliminate 8 teams.
I think it's fine the way it is now. I don't like the rumors of more teams in the playoffs and I wouldn't want to reduce the number of teams. In fact if there were 2 more teams in the league, it would be perfect. After the regular season, you eliminate exactly half the teams (32 down to 16), and then each round of the playoffs eliminates half of the teams until there's one left standing.