I imagine Serena and Raythen will be made, since they're integral characters. It'd be cool if they came with two figures, one of the evil version and one of the good version. But I feel like they'll just do the evil version, seeing as they are agents of the Overlord. It'd be cool to use them (Serena in particular, not a huge Raythen fan) in different campaigns.
I hope we see a Queen Ariad pack, though it'd be somewhat odd to see her pop up in other campaigns without the backstory behind her. Maybe an Ariad/Queen Ariad set... I'm interested to see how FFG will go about it.
It's a shame I don't like Sarena. She seems very forced on the heroes to like her. Like some madly in love fool. Raythen feels more real to me. Reading though his thing... he makes me laugh.
Ariad pack will be pretty epic, I feel.
my next question is if each pack comes with its own threat tokens what do you do with all the extra ones from buying 6 LT packs
We have a thing we keep all our tokens in. We keep all the extras due to the nature of losing small objects. We also thought we would have too many hearts. After having everything, I wish we had more single hearts (not the fives) due to me always needing more on those quests where I have allot of monsters.
I would hold onto the extras. You never know when you might need more due to the quest or by a cat deciding they are fun to play with.