rereleases for Journey into Nyx are happening right now all over the world! The set's Card Image Gallery is complete, but more importantly, Journey into Nyx is now in Gatherer. Like the Prerelease, the Pro Tour Magic 2015 Qualifier season format (running right now!) is Sealed Deck. Find a PTQ near you with this handy link. Good luck; have fun!
Pro Tour Magic 2015 Qualifier Season (Sealed)
Theros Block Sealed on Magic Online
Theros Block Constructed on Magic Online