I think it's fair to assume we'll eventually get a new VF regardless of this guys authenticity. I too hope it sticks too its roots and doesn't try to go flashy or anything. Although a robust character creator mode would be awesome.
I haven't been keeping up with the fighting game scene, how come TEKKEN and Soul Calibur fans are disgruntled?
New VF seems likely, considering the fact that it did well enough for Sega to support 3 Sega Cups in the west and the coming Ver. B update for Final Showdown (Which seems to be just 'turning off' net functionality for the title).
As for a character creator mode, I would personally prefer they keep to the custom objects rather than go full create-a-character mode. It would be pointless for arcade mode and online play since nobody would allow it for competition, so it would be relegated to a bonus mode and I doubt anyone would buy the game for that if they weren't already planning to buy the game.
The customisation mode allows you personalise your character without ruining balance (character size is important for hitboxes, and you still know your matchups even if the characters are different), and I like that even though you can alter the characters they still retain core features of the cast.
As for Tekken/SC: Tekken 7 is introducing a lot of stuff that flies in the face of what Tekken is at it's core. The biggest I can see in Tekken 7 is something called 'Rage Arts'. It's like super moves from Street Fighter and it's really not fitting of the Tekken formula I think. Other things like strange character choices (Lucky Chloe and Catalina (who I believe is a mash character or some nonsense?)). They are basically trying to add empty flash that's not going to win over the SF/Marvel crowd but just drive away the existing fans.
Soul Calibur has been on a downward slope for a while. SCIV was a train-wreck, especially with the Star Wars characters, and V also included 'super moves' and Ezio from Soul Calibur. I don't know much about SC but I think V wasn't particularly well recieved. Not to mention there just hasn't been a SC for ages so I'm sure the fans are wanting a new game.
Closest competition in terms of style is probably DoA, which is kind of like a bootleg VF but has more exposure (pun not intended) and they are even releasing it on PC next year, the first 3D fighting game to get this treatment in a donkey's age.