The fact they are actually having a 'reality ensues' and letting the main cast realistically fail in the league from inexperience leaves me to believe some sort of vindication arc may happen afterwards, much in the same way Ash's loss in Kalos League was balanced by the Team Flare arc straight afterward in XY. SM loves it's vindication moments, cases a character makes a fool of themselves but still proves their worth afterwards and I feel like they won't want them getting thrashed in the league to be their final hurrah.