>>13710050
That's not how it works. Release groups generally don't upload games until they're out of game centers so the publisher is less likely to shut them down. They also need to make sure everything works, both on regular computers and with the emulated networking services. It's the same thing with IIDX and SDVX. However, AS0 came out recently so maybe in a year or so you might see AS8 come out.
Just to put it in perspective, IDAS7 came out in 2012, but was only uploaded 3 days, 17 hours ago.