Just going to throw some set ideas into the ether, I'm sure some may have been mentioned earlier.

J set - a player card based on their J career.

Awards set - would include award winners and award nominees as well as the season they recieved the the award/nom. Alternatively just winners.

Cup winner set - includes players that have won the cup.

2k set - this one is obvious.

All-Star set - includes 1st, 2nd and 3rd team all star players.

IIHF set - self explanatory


I liked spookeds idea if limiting the purchase window for some packs to when certain events take place. I think thats a great way to create more interest.