Nithyananda cannot become as Buddha or Adhi Sankara. .
In Bhagavad-Gita Lord Krishna explained about Dyana Yoga to Arjuna. Krishna says a true sanyasi is one who has no attachments to worldly things. He has no self-interest and whatever he does is for the benefit of society. The sannyasi lives a celibate life without possessions, practices yoga meditation — or in other traditions, bhakti, or devotional meditation, with prayers to his chosen deity or God.
Sanyasi has a peculiar kind of relation with the society. He can be dependent on it for his food, though not settled with one set of people. He can also teach them what he knows. However, he shall not accept any assets from anyone.
Gauthama Buddha and Adi Sankara were the real saints who have left the worldly pleasures and lived for the uplift of common people.
Nithyananda, who lived a princely life and dancing with Girls, claiming himself as Lord Krishna is unacceptable. First, he has not at all followed the Sanyasa Dharma.
Our people must take notice of such Fraud sanyasis by seeing their action and deeds and eliminate them from the society. They can straight away pray to God for their happy living and should not fall victim to these bogus Swamijis.