i think you could make this with tunisian. when it gets the the split, you could keep working half the stitches until both halves are long enough and then start stitching across the entire piece again at the other end.
Passo a pa sso?
Crochet Cascading Kimono Cardigan Free Pattern - Crochet Women Sweater Coat & Cardigan Free Patterns
Удлиненный кардиган крючком от FILATI.