Bethesda has revealed that registration for QuakeCon 2011 will open on May 26 at 5pm PT (8pm ET). For those without a calendar handy, that's this Thursday.
Online registration will be open for exhibit hall access, "Bring Your Own Computer" events, and for premium packages.
As previously announced, the event will take place from August 4 through August 7 at the Hilton Anatole in Dallas, TX. According to the Bethesda Blog, more information will be released closer to the day of the event.
All we can say now is, "Keep those fingers crossed for Doom 4."