"Beta testing comes after alpha testing and can be considered a form of external user acceptance testing. Versions of the software, known as beta versions, are released to a limited audience outside of the programming team. The software is released to groups of people so that further testing can ensure the product has few faults or bugs. Sometimes, beta versions are made available to the open public to increase the feedback field to a maximal number of future users" -
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Also, bear in mind, that this is still a CLOSED Beta: see the bolded part of how the differance is explained:
"Developers release either a closed beta or an open beta; closed beta versions are released to a restricted group of individuals for a user test by invitation, while open beta testers are from a larger group, or anyone interested. The testers report any bugs that they find, and sometimes suggest additional features they think should be available in the final version. Examples of a major public beta test are:
In September 2000 a boxed version of Apple's Mac OS X Public Beta operating system was released.[3]
Microsoft's release of community technology previews (CTPs) for "Longhorn" in January 2005.[4]
Open betas serve the dual purpose of demonstrating a product to potential consumers, and testing among an extremely wide user base likely to bring to light obscure errors that a much smaller testing team might not find." -
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If Trion releases an open Beta, then you can expect more playtime.