I’ve asked a seller from UK http://www.edirectory.co.uk and she said me that the HRAP will be replaced by other Hori Stick, PS2/3 compatible next summer.
Anybody knows more information?
“Hori Real Arcade Pro Stick for Playstation2 - this item is
being replaced by a new PS2 and 3 compatible version. This is expected to
be out in the summer.”