Auto-translated
Well, the idea of a final might not be bad from the viewers' perspective. Although, in essence, it will give an extra chance to those who didn't actually win. I think that we should just stick to a round-robin format, and if it's really necessary, a round-robin + a Best-of-3/5 final between the top two. The idea of having different castles for each round was tried a few Facebook tournaments ago and only caused outrage.
I think we should stick to the standard map template, and then have a draft for castles, with a checkmark for restructuring, and a mandatory replacement with HL+U (we can conduct a poll among the participants at the start of the Facebook tournament for this). If you really want to introduce some "gimmick," let it be a Best-of-3/5 final (I emphasize, between TWO), and not a mess with castles/templates for each round and other nonsense.