Couldn't find many details on the format of the playoffs, but will suggest a few things:
If both tourneys will consist only 8 teams, I think a double elim format would be the best format.
***Furthermore, I think the top 4 teams in the matchweeks should be rewarded by starting in the upper bracket, while the bottom 4 are immediately placed into the losers bracket, i.e. they exit the tournament after 1 loss.***
Admittedly, the tournament will be 1 match long for two teams using this format, but that seems to be inevitable with a tournament using weekly placement matches (instead of a true "group stage").
I think there were some minor complaints following Movement's tournament regarding the reward for winning matchweeks. It didn't seem like there was much seeding advantage gained for the tournament.
Important note is that Movement's tournament gave points for matchweeks and the tournament towards a cumulative table, so a big seeding advantage wasn't so necessary there.
However, from what I understand the matchweeks here are effectively glorified placement matches (which is still fun) for the tournament, and a means to split the stronger and weaker teams like a L1 L2 deal. Without the cumulative points of ESC, this seems like a decent option in my eyes.
Would like to hear what you have planned for the tournament regardless.