Mission Pass explanation: https://pso2.com/news/blogs/missionpass
Good topic that explains Mission Pass: https://forum.pso2.com/topic/868/mission-pass-gold-ticket-clarification-with-the-introduction-of-mission-passes
Scratch Cards: https://pso2.com/news/blogs/scratchtickets
There are a couple others as well, but I know the mission pass has been a huge focus since it was mentioned.