It appears the Communists Party of China is lost in its searching for ruling legitimacy.
Evidently, the 'Communists' roots was deemed inappropriate. The 45 anniversary of Mao's death was passed without a single word of mentioning in any state controlled media. Actually, any attempt that may reference to the Mao's past has been cracked down as brutally, as in the case of any democratic movement.
Last year, a statue of Confucius was quietly erected in the Tian'anmen Square. While the nation, mostly those in alignment with the Party cheering for the gesture to recognize the saint 2500 years old, the statue was removed quietly in one ordinary night.
The CCP stunted the nation again, when in an unprecedented memorial gathering of the 100th anniversary of the Xinhai Revolution, attended by every top level officials in Beijing, President Hu Jintao personally announced the CCP was 'the most loyal beneficiary' of Dr. Sun Yet-sen. Five days later, Sun's humongous portrait was removed from the Tian'aanmen Square on the day of the 100th anniversary of the Xinhai Revolution.
The issue, probably, is that every possible candidates who potentially qualify as a spiritual legacy that the Party can hang on must also have emphasized moral and value that run into conflicts with the Party's practice.