Probably will be like EMEA next year.
LATAM South, North and Brazil will play Qualifiers separately and Challengers Playoffs together in a lan event.
EMEA does this in EU, TR, CIS and Northern Africa
Maybe KR, Japan, South Asia and OCE do the same and merge with SEA to create a greater Region: APAC.
Last chance SA and APAC were like this (OCE "was" in NA Last Chance tho), so i think it's not impossible to happen.