Getting back to the topic, even though that Katsuhiro Harada has had a petition &/or blogs for Soul Calibur V or somewhat, I wouldn’t get any hopes up, as petitions/blogs rarely work. I remember people begging Namco for Hwang & Li-Long to return for Soul Calibur IV, & look what happened there.
What I think that companies like Namco is doing is focusing on franchises that are money makers, like the Tekken series (hence, why they announced Tekken 7 & are currently working on Tekken x Street Fighter).
I’ve heard that Project Soul was fired & that half of that team were transferred over to the Tekken team & that the other half just got laid off. It could be a rumor, though.
Think about it. Unlike the Soul Calibur series, the Tekken series never had to depend on famous guest characters in order for those games & sequels to sell very well. Soul Calibur II, IV, & Broken Destiny all had famous guest characters. Tekken had always managed to sell very well without them.