Im fairly sure most beta testers dont do anything. The mods will likely become McNeely himself of course, the people who help him maintain the site, and quite possibly people he feels have contributed to the site. Having all the beta testers being mods would be a good idea but they were all random.
As a beta tester, you have less competition to show McNeely that you are responsible and you can show how smart you are by helping him out with the site (suggestions and such).
If their are mods (made up of people McNeely does not know in person), I am sure the list will be very small, maybe 10-20, maybe evin 30 people. This site is not going to be like newgrounds were they NEED 100 different mods XD. Armorgames' forums i doubt will have as many people in the forums or as immature as those on newgrounds.