If this isn't correct, I'm going to sound insane but based on what I've seen on Twitter, was I'm never going to watch this show so feel free to spoil away (with spoiler tags for those that don't want to know).
Yeah, poor Paul Rudd or Natalie Portman or Zoe Saldana or some other fairly big star will show up and everyone will be like "Eh!" since they hoping to see something on par with The Mandalorian's surprise appearance.
The second season of The Mandalorian only had two soundtrack releases (one with music from the first four episodes and the second with the other four episodes) that came out halfway through and the second release when the season ended. Maybe Disney will do the same here?
Agreed. Although while nothing says that they can't run both at the same time, The Mandalorian ends on December 18 so they may just skip the holidays (and they already have Soul going up on December 25) and wait until early January to start WandaVision.