The german news site swity.de have published an article, including an interview with Julian. Thanks to Jacob!
Unfortunately Julians words leave room for interpretation and we would like to clearify the following: After all we know, METAL_FLOWMOTION was not founded by Cie Quilla but by Sarah Keusch (Cie Quilla member) and Angela Weber. Sorry about not being completely transparent in this case.
Both Cie Quilla members (Sarah and Rebekka Scharf) are involved in METAL_FLOWMOTION now.