If Dusknoir is Active and uses its "Cursed Blast" Ability to KO a Togekiss with "Wonder Kiss" Ability, would Togekiss still get to flip for Dusknoir being KO'd or not?
Yes, you would get to flip for Wonder Kiss. All effects have to be resolved before resolving KO's.
Source: TPCi Rules Team (2024-12-12)

Relevant cards

Note: All applicable cards may not be listed below.
SV65_20
SV65_20
SV8_72
SV8_72