Do you mean an upgrade of 5?
I am pretty sure he meant Virtua Fighter 4, the release of 5 we got on consoles did not add much to the series at all, in fact it removed a lot of features that were actually pretty basic.
VF5R has new levels that are actually not big squares this time around. They have all kinds of shapes now! And some change from round to round, neat! It also has new and waaaay better music, as well as the option to choose every song from all of the previous games in the series, excellent addition!
One of the "New" characters is Taka-Arashi from Virtua Fighter 3 (the only character from the series to ever be removed).
I am hoping MadeMang is right here. I would be the happiest guy on the planet if it happened and they had good additions to the home release, like Virtua Fighter 4 Evolution did.