I hope Jaja comes back next year. I enjoyed her. Foreign players usually split after the regular season, but Christiane Furst played with Denso in last year's Kurowashiki Black Eagle tournament, so I dunno.
If the date on that video is for a match played last week and Jaja is there, then yeah, she's back in the Philippines. A lot of leagues let teams hire or borrow pickup players to help them win important matches. Strange practice, but Jaja played for Foton before coming to Japan anyway. Probably more important for Jaja to help her home team win than to play in the Black Eagle tournament with Saitama.