And if we already have Tiana's costume? Admittedly I had to check, because I haven't used the outfit since I got it.
There was a notification early on that one or two Tower Challenges would be starting to help newer players get characters they might be missing from previous challenges. As for long time players, they could play or skip it, although there would be an added section of prizes beyond the standard three. If we're gunning for a useless comfy outfit, then there's really no point.
In other news, the now-useless white whale is complete. All of his friends, along with the attractions, are back in moth balls.
Piecing together info from a couple of sources, it looks like the first bonus spot will be a sapphire chest, second spot will be Tiana, and third spot will be the comfy costume. I agree that the comfy costume is largely useless, but I don't have it, so I will keep casually playing the event. I still have Luca characters to level up, along with a straggler from Star Wars, Raya and the useless white whale so I might as well play along.