My bet is a NA T2 team with all players over 18, probably a team they have a close relationship from scrims. It’s a win win for both because Furia has a team take their spot who can have set strats and stand a chance and the T2 gets to play on the T1 stage
They will hire a full NA roster to play the first match. Probably a team that has been practicing and doesnt have an org, makes it easier for legal reasons. My guess is Okeanos and Screwface's team Ambrosia.