Some folks over at the MTGSalvation forums' Rumor-mill spotted 'Zendikar' as a new USPTO filing from Wizards. Is this to be the name of 'Live' the first set and block to be released next? We're waiting to hear back from our press contact as to whether there is any comment on the rumor.
Update: Wizards currently has no comment on these rumors. Their Press person informed us that an official announcement concerning 'Live' would be coming in the next few weeks in the 'Arcana' section of the official website.