Whilst the Harvest Moon series has a strong following, fans of the Nintendo 64 edition won't be getting their fix on Wii.
In an interview with Natsume, Vice President of Operations Graham Markay revealed that although there is interest in bringing the game to the Virtual Console, various technical issues have prevented a release.
It will not. It will not. And it's not from lack of trying. Unfortunately, the code of the game is not... it's not an easy transfer. It would be really time-consuming and long, and we've looked into it, and we've tried to see if there's any way around certain things, but the conversion to virtual console, it's just... I shouldn't say it's never going to come out, but there's just a really, really, very small chance that it would ever come out. Which is unfortunate because we know that for a lot of dedicated, die-hard fans, that's their favorite.