Interesting read that thread, appreciate the effort. I must admit, as much of a fan of Akira as I am (I have the film on 4k, the 35th anniversary manga box set and an original cel/genga), I never really paid much attention to these arcade games!
The attention to detail throughout the film amazes me to this day. For me it is still the yardstick for hand drawn animation.
Are they still making the TV series? Not sure if I want it or not. On the one hand, the film never really did justice to the scope of the manga so hopefully we get more of it animated. On the other hand, it will never match the quality of the film and will always be compared to it (fairly or not). Guess we're going to have to wait a while to find out either way!