You will create new Remix characters (Timerunners) for this event on whichever realms you choose. So that can be the realm on which you mainly play, and it can be realms where you have some alts, and it can be a realm that’s completely new to you.
When you select a Timerunner and hit ‘Enter World’, you’ll enter the Remix world and play there starting at level 10. After the event ends, your Timerunners will be converted into standard characters and you’ll have them available to you in the charac…
Take it up with the community manager and their wording not me. They quite literally pointed out this event in question to the now-unobtainable items on retail.