Left to Right at the replacement:

DDLC!Sans replacement as Killer.

Aoharu!Sans and Hoshino replacement as Hard-Mode (I'm too lazy to draw her.)

AND!Sans replacement as KAB.

TSBP!Sans replacement as Dust.

Limbus!Sans replacement as Last Breath.

Punished!Sans and Elma replacement as TITR.

Backroom!Sans replacement as Horror.

EFO!Sans replacement as Insanity.