I'm guessing this is a bug and it's additive. It's happened to me since the beginning of Worlds. I just finished a game and I'm up to a total of "103 new missions added"! I can't imagine i missed out on that many missions because I didn't buy the Worlds Pass or something. That's what I initially thought, and that that message was a teaser for what I was missing out on by not spending ~$15 to get some more relatively worthless tokens. The event was a disappointment this year imo, not really worth bothering with in hindsight. Sure, it's free, but time isn't. Also, it would have been nice if they would have made it more clear that the loot would change (it's now popstar crap) and you wouldn't have access to what you were originally planning to get when you got enough tokens.