The Virtua Fighter trademark has been renewed in July according to http://www.trademarkia.com/virtua-fighter-74472195.html
It has been 10 years since Virtua Fighter 5 came out, 6 years since its latest revision Final Showdown hit the arcades...
Of course this could just be business practice, remember when Sega failed to renew the Shenmue trademark.
I'd love to hear your opinions/theories on this guys.
Cheers