Religious tolerance is not something that is existing in Burma. The majority of the Burmese population, 89%, are Buddhist. They have been using the campaign of Burmanization—as you will see in some literature or books—of all ethnic minorities. They want them to convert to Buddhism.
That's why there have been serious clashes in Christian areas—Kachin and Chin and Karen. The Burmese government has been launching campaigns there to convert them back to Christianity, and the same thing with the Muslims. So religious tolerance is not there, and a multi-religion based society in Burma is not in the picture right now.
However, if that democratic transformation process goes smoothly, that will hopefully guarantee some coexistence of religion, and a multi-religion based society could be possible in Burma.