I think all regions will get the same about of slots, but idk how many 2 seems like not enough, 3 sounds would be weird to then build the brackets and 4 seems like too many
The problem is LATAM is divided into LATAM North and LATAM South, who have independent leagues so that would mean those leagues get a spot each. There's actually 4 leagues in Americas even tho LATAM leagues are probably gonna share slots