Like BTR, the Animahjong games never got their Windows conversions following the V series conversions.
BTR was an obvious oversight. Sogna never really said much about the Animahjong series, particularly after 1998 or so. But here's some proof from the August 1996 issue of BugBug that Hobibox was taking orders for Animahjong X for Windows CD, priced at 9800 yen.
Things may have developed quite differently for Sogna if they'd followed through on this instead of going down the T/F/M path and the Guynarock remake. We may have potentially seen the Animahjong Amazon game that never was instead.