If anything... they need to make another club stage!
2U had one, then 4... and then they stopped. They were lively, fun and had awesome remixes. Imagine a new one in 6 with remixes of the DOA4 themes!!
Didn't DOA2 have shitty english voice acting? No thanks.
DOA2's acting was bad and the lines were CHEESY, but the voices themselves were really good to the point where I would say it sounds BETTER than 5's voice acting. i prefer ayane, helena, leon, leifang, hayabusa, bass, gen-fu and jann lee's 2HC voices much more compared to their 5 voice actors. This seems to be the case with older games though. They always had the perfect voices but shoddy direction/translations.
Even with Soul Calibur, i think SC2's voices sound so much better than what i've heard of SC6 despite the actual acting in 2 being much worse.