Besides do you really want it localized? This is one of the cases where Japanese VAs are better.
I cringe at the thought of which generic whores they'd get to voice the girls. I'd hate to see a dating sim of any kind localized with English voice actors for the fear that every (female) character will sound like some slutty sixteen year old white girl. The type of girl you can find showing her tits on Stickam.
I'd enjoy it if they somehow managed to localize it and kept the Japanese language but that's impossible to do without ruining what made the game special. The fact that the girls spoke to you and said your name.