Besides her continuation in FJ, her solo career without Kajiura has mostly been unremarkable, despite signing on with Avex. Keiko has only 3 good tracks out of her entire discography - post-Kalafina, all of her highlights were her FJ solos. Having essentially a FJ Keiko project for this is very much in the right direction.Keiko basically won the post-Kalafina offers lmaoo
Still part of FJ main singers
Anime Tie-Ins/Solo Career - Avex/Lantis
FJ Keiko - Sony/Sacra
Honestly, Wakana has the best solo career, but that wasn't all that surprising. Staying with Spacecraft gives her access to their funding, which means much more opportunities for tours, concerts, TV appearances and exposure. Flag was extremely successful for Wakana, and her acoustic album is actually so good. Hikaru had the strongest start with Alter-nate and all her other anime tie-ins, but not being with a label really hurts her exposure.