User blog comment:IamJakuhoRaikoben/Chapter 443: And Then, The Land Was No More, Review./@comment-24264679-20150707233244/@comment-3290324-20150708013231

It's definitely not temporary imo. Once you Take Over something, it's yours. She couldn't Take Over Seilah in her entirety, so she just took over her Curse, which became hers. Never heard of a temporary Take Over. :/