There is still no listing in Active for it, but Marathon Weekend is already in there.
No run clubs (or very limited) are taking/receiving bibs because ALL non-direct registration providers (TAs, Charity, Run Club) are now required to abide by the TA registration rules - that means a required two-night hotel and two-day ticket (APs/CMs are the only opportunities to have the ticket requirement waived).
At this point, always assume changes of some kind unless you’re planning on Marathon or Princess Weekend. Those two weekends are consistent, almost immediate sell-outs and they are able to share a lot of the same logistic elements that come at a reduced cost with the weekends being so close to each other ... the start/finish area for example - signage comes down, but tents, bleachers, even the finish area stays up and entirely intact between the two weekends and for anyone that’s planned a large-scale event knows that one of the biggest money sucks is having to pay to have that stuff set-up and taken down. The rental cost is minimal. So, two race weekends with only one set-up and tear-down cost is HUGE.
RunDisney took a loss on W&D last year (as did many TAs, Charity Providers and run clubs), so they could be looking for ways to maximize cost options.
Personally, I enjoyed the party because it was nowhere near as crowded as the years when the race ended at the party. But that’s because it felt like only half of the participants actually went to the party. So, if Epcot Food & Bev was receiving some sort of expenditure guarantee from RD to keep the booths open and didn’t meet that (RD would have to pick up the rest of the guarantee), it becomes a really costly event.
I’m trying to remember the last race event where themes were announced before registration - maybe Pixar/2017
Disneyland?