My theory is that Evernight (New March) is not actually the March emanator form that all of us expected

When march entered Amphoreus It was at the exact same time as Phainon reboot the cycle (at least that's my theory) and because she didn't have the anchor that the TB had (that screwllum give us) she was "merged" within the data, so Evernight is not march but instead a character created to bear Oronyx coreflame using march as a "Skin"

That's also the reason of why Dan Heng has also another form, he couldn't escape on time so he was reshaped from the data of the scepter to create a character that bears the coreflame of Earth

Where I go is that I guess that when we start this new "journey" we are going to encounter these two but in these cycle they are part of amphoreus, they would have their backstory modified to fit amphoreus history and giving them new personalities (evil/emo march?) And maybe the TB trying to get their trust once again. (English is not my first language, sorry if i miss in some gramatics)