What's the future of Hinduism?

Once the Islam and Christian population reduces, would the future of Hinduism be to incorporate Buddhism, Jainism and Sikhism and create a looser version of Hinduism that gives equal importance to Buddha, Mahavira and Guru Nanak or would it be to create a more rigid and strict monotheistic religion that reduces other cults to zero importance.<br><br>This would only happen in a 2-3 generation time period, when the vast majority of the Indian population becomes Hindu.