Tbh there was so much written by the time I got here, I didn't read it all. But I love speculating, and here are some random thoughts on things that stuck out to me.
+1 Card.
+1 Action.
+$1 +1 Buy.
Gain a Duchy.
Gain a copy of this.
I think these are unlikely, because they remind me of Ruins, which are "bad" cards. I think/hope the tokens do something more original and exciting, although these are very simple and Donald likes simple. Gaining a Duchy in particular I think is very unlikely. See the Hinterlands outtakes about a Victory card that came with a Duchy. Running out 2 piles at once was no good, so Border Village gets around this by letting you pick a variety of piles to gain from.
Since I skimmed through this I might be wrong, but I think my impression of Events was different. I imagined Events weren't going to be like the other Dominion cards. Sure the information will probably be on cards, but they won't go in decks or come from the Supply -- I'm thinking like a different card frame and everything. I feel like they'll be able to be used in any game (even ones without Adventure cards), like Platinum/Colony in Prosperty-less game, although the rules may suggest some condition to include them. Therefore I feel like they won't need particular Kingdom cards to trigger them. Without thinking this through, here's a rough idea:
- In games using Events, randomly shuffle together some of the Events (probably same as the number of Curses you use). You know, Donald and Dominion are big on variety.
- Events might be things like "Victory cards cost $1 more", "All players start their turns with +$1", "Pay $6 during your Buy phase so each player gains a Curse". (Obv not Dominion-wording.)
- Then each event has a trigger for when you discard it/put it on the bottom and reveal the next Event. I dunno, maybe "when a player buys a Victory card", "a player may pay $5", or in the case of the last example above, just when it happens.
- Some Events would probably also reference these tokens and idk how exactly they might be used. Initial thoughts are that they go on piles and do things like "copies cost $1 less for you, $1 more for them" (since that was an outtake card, but this would become more complicated when multiple colors of tokens are on a pile, so it'd probably be something simpler).
Reserve cards I imagined just being like normal that sit around on your Reserve mat when you buy them until you want to play them. Basically like Activation cards but rather than sitting in play, they sit on a mat. Maybe you pay a cost to get to play it, or the benefit is simply getting to use it whenever you want, or maybe some do something cool while it's on your mat but some other awesome one-shot thing so you're like "do I lose this lasting ability to use this awesome thing once?" But if that's the first thing I think of, then it's probably not right. Plus the playtesters seem to tease Reserve cards more than the Durations and Events, so I feel like they must be particularly inventive or exciting (as in, not the idea I just suggested).
Ugh, I feel less confident about my guesses as I reread them. I'm sure parts of this are embarrassingly wrong but if anything is in the realm of resembling something from Adventures, I will feel accomplished. I'm guessing (hoping?) there will be a Durations preview, a Reserves preview, a tokens preview, and an Events preview so we can get all our questions answered.