if navi gets 2nd seed in their group instead of 1st seed, they can go to play-in stage, win it and then have to face Group A#1 (FUT or Giants probly) instead of Group C#1 (FNATIC)
Its not confirmed yet I think
If play-in winner will be from group A then there's a chance that it will be group b vs play-in winner and group a winner vs group c winner
Might be wrong tho