No, the tokens go away with the event.
Turn in Your Bronze Celebration Tokens
If you have any remaining tokens, now is the time to exchange them for Timewarped Badges or any remaining Anniversary items you may want to collect. Once the event ends, these tokens will no longer be usable, and we have no plans to use them in a future Anniversary event, so don’t miss your chance to cash them in.
From: 20th Anniversary Event Ending Soon
/moo 