No. Their plan is to add 5 new Challenge Events to the original 5 (Avalon, Grimforest, Teltoc, Pirates, Wonderland). The League of Villains was the first (reflects Dark like Pirates), Starfall Circus is the 2nd (reflects Holy like Teltoc). There should be 3 more to be added.
Avalon has just been pushed back one month to July instead