I honestly don't understand why did the translation team choose to use the name "Dusk Form" for the new Lycanroc form.
Had they kept the Japanese name (Twilight Form), it would have been less confusing.
People won't think there will be another unrevealed form (since "Twilight" doesn't have a counterpart word), especially after Dawn Necrozma is revealed.
That was my exact thinking too, people will speculate a Dawn Lycanroc thanks to there being a Dusk Necrozma and a Dawn Necrozma.
Whats next? DP remakes where Lucas is now called Dusk, so you can play as Dusk and Dawn?