I'm not a fan of the Yakuza games
From what I've observed though, it seems like Sega of America and their PR really have their hands tied as far as making a decision to bring the next Yakuza title over (hence Aaron telling everyone to go out and buy copies of Yakuza 4 and Dead Souls).
Releasing Y1/2 as PS2 classics is a terrible idea. PS2 classics aren't upscaled and don't have trophy support. People won't buy those, especially since Japan has Y1/2 HD with trophies. That would just be a bigger slap in the face to Western fans.
There's a difference between digital download ps3 games and ps2 classics which you suggested in your previous post tho.
Everything in business is about the bottom line, so regardless of to whom they are sold, the sales matter (at least to the people making the decisions). So the best thing fans can do is try to get other people interested in the series, perhaps by buying them copies of the game.
Also, from what I've read about Kenzan, it wasn't brought over because Sony sent out an edict that required all new games published after a certain date to have trophies (Kenzan doesn't have trophies), so Sega decided not bring the game over instead of adding trophies + localization.
I heard rumors of trophies being "required" for both PS3/Xbox 360. To me trophies are worthless and it should have never been required for modern for video games. I'm glad Nintendo didn't go down that route, and on PC you don't need worthless ways to make people play games.