As an example, these might be:
Closed: Sandiboush - Nords vs Sarranids
Mixed: Ruins - Rhodoks vs Sarranids
Open: Field by the River - Nords vs Swadia
From this point onwards, it's effectively the same system used in the NASTe competition. If you aren't familiar with that, I'll explain it below.
Team 1 would pick the first map to play. Say it was Ruins - Rhodoks vs Sarranids. This would be played in the same way as a map in the current format. Switching sides etc. (though it might need to be shorter) and you'd play until a team got over half the total rounds for that map. Say it was 6, you'd play until a team reached 4 or it got to 3-3, in which case the map would be a draw. Let's say that is the case and the first map is drawn. Then Team 2 picks the next map from the remaining two. Let's say it's Sandiboush - Nords vs Sarranids. Team 2 gets to 4 while the opponent is on 1, it ends at 4-1. Team 2 would then win and a third map would not need to played. The same would apply if a team had won both of the first two maps.
If however teams were a map each (or 0 maps each, 2 draws) then a third map would be played. This will always be the remaining map from the three that are given at the start and it would be played in exactly the same way (3 rounds a side, as proposed).
a system of wins and losses, regardless of what happens to tournament formats. I have been thinking this would be a good idea for a long time (long before IG won the title) and that result had no bearing on my thoughts, nor do I intend for it to take away from their victory in any way.