LightBox Interactive has announced that the Starhawk closed beta will be ending on the 3rd of January, 2012.
"The Private Beta was our first step to try out the game in the wild and it's been simply awesome," said Harvard Bonin from LightBox. "And because of this success, we've decided to keep the Private Beta live through the holiday break."
Once the public beta closes, LightBox will then begin work on the public beta. Anyone who bought Uncharted 3 will have a beta voucher they can use, but the dates for the beta haven't been decided yet.
Source: PlayStation Blog