Americas : ???
EMEA : ???
Pacific : ???
We don't know because we don't know the rosters. But my prediction:
NA - Sentinel, because they have so many fanboys so they will always perform worse than expectations from mainstream
EMEA - Vitality, because they always build super teams but end up sucking anyway like their LoL roster. I can see something similar happening in Valorant.
Pacific - Zeta, because again there's many fanboys and people who believe in Japan.