[2019] I believe that people who were on vacation or missed the community challenge should be able to somehow acquire the victory poses. Albeit another community quest, or to be purchased once all the community quests are finished. It for sure would piss off completionists if they would be locked forever.

We're aware of the feedback coming in about this, and whilst we have tried to be clear on the 'reward window' of the Community Quests it's understandable that confusion may have happened - and like you say, some have simply been on vacation. Will send a message through to the team on this.

Here's an example, Just so we're clear for Yoda (and Grievous that's ongoing)

If an Obi-Wan Kenobi quest started on the 18th, but was only completed on the 25th you would then need to log in from the 25th - 27th in order to claim the reward. The faster the community completes the Community Quest, the more time you would have to obtain the reward. It truly is in the communities hands.

They are limited-time exclusives that would be used later down the line in a similar fashion, just like how the Leia appearance would most likely, automatically come around every May 4th.