Hi, i just started this game 2 weeks ago, and i have a question, some of the cards, that where in the last events, that i missed, will ever come back, are they obtainable in any other way? or they are just "lost" for the players that started later?

Ty for your answers.

Yes, via event gacha (that means cash and card reveal)

Some cards return with every event gacha. However, some get marked as "limited" and those have now vanish from the gacha. The game is still very new, so I don't know if those previously limited cards will ever return or not.
I'm fairly certain that every card that has been obtained for free, aside from the event only cards, are still available. I have no idea if event cards are going to reappear or not.

So, i will never be able to have a full set of cards... thats a disappointment...

Don't play this game if that is your only goal. It won't happen unless you are willing to spend a fortune.

Are there any other goals? Everything in this game kinda revolves around collecting cards...