Beta Frame is going to show alot.
As far as the Axis go, there are some who have been No Shows from day one. There are those who have been active but not available for Beta or some practices that are going to show for the main event. But after the Beta, the Axis are most likely going to purge their roster of those who have not bothered to post, respond to email or show up at all for anything.
At some point, there has to be a line drawn and make room for people actually interested in the event instead of just taking up a registration slot.
After the Beta Weekend, I'd expect to see slots on both sides becoming available.