You'd be surprised, actually Leifang was gonna be in the initial roster, but like
@HHH816 mentioned, people specially made JP PSN accounts, bought currency then bought the Helena avatars to beat Leifang on the last week of that poll.
Of course Scarlet came out 3 years later and Lei made it in with Misaki as DLC.
It was a missed opportunity to include more girls from VV or more swimsuits but gave up on X3. I'm pretty sure it's the same engine.
The one thing that surprises me is that the Salmon Roe or Pistachio or Peace never came to VV. Only like one character got one.
X4 would be a dream but due to the backlash of how they handled the paid dlc on X3, we may not see X4 anytime soon.
Although a port or remastered versions of one and two would be nice or the 1st four main games.