Looks like we'll be getting 3 tickets for the x40 draw. One automatically, one from the retweet campaign, and one from the mini-game. Still no idea what the cut off date or rates will be though. Also some speculation that we'll get 2 tickets when the event drops, and one the next day based on a tweet.
EDIT: 500 million point milestone has been added to the mini-game. The reward? FIVE x11 Realm/Elemental draw tickets.
Edit 2: Reached. Enjoy your draws folks!