I've just finished a second encounter and have added it to my mod, but I'm not sure exactly how that will behave for people who have already installed the mod.

I decided to create a second token for the second encounter, since I figure that this means that if someone already has the mod they should probably still get the new encounter. If I had added a second encounter to the existing token, would people who had already opened that token get the card?

I've done it this way because I'm concerned that they wouldn't, but I can see that if I get to the point of having a half dozen encounters then people might get annoyed at having to watch the animation for that many tokens, rather than just getting one token with all of the cards.