If you can recall this website DID say See you On OZZFEST 2011. Maybe they will do another 6 Date thing. And he has like 3 shows in August over seas. NOT full tours. Just because Mayhemfest already announced their tour and line up. Doesnt mean every other tour will be announced around the same time. Id saw wait till April-ish then start getting suspicious.
Ofcourse it's possible. I just think it's more likely not to happen, but it could. We all know by now that a lack of announcements at this point in time isn't any indication of whether or not there will be a fest. Ozzfest is typically about 4 months behind all the other fests when it comes to releasing any info, so this is nothing new.