The messages posted by Ansar and Alfidaa websites suggested that Libi remains alive.
"Soon, a video message by sheikh Abu Yahya al-Libi, may Allah protect him," read the message posted by Al-Qaeda's Sahab media arm on both sites, one of which was put online on around 1500 GMT on Sunday.
The United States said on Tuesday that Al-Qaeda's number two was killed in a drone strike, in the most weighty blow to the organisation since the killing of its founder Osama bin Laden.
Pakistani authorities spoke of a pre-dawn CIA drone strike on Monday on a compound in North Waziristan, near the Afghan border while US officials did not disclose details of the attack.
A trusted lieutenant of bin Laden, Libi appeared in countless Al-Qaeda videos and was considered the chief architect of its global propaganda machine.