How can I exchange these tokens for fiat or other cryptocurrencies? Will it be available only with the end of token sale?
Both options will be possible when the ICO will over, you are absolutely right! Until then, I expect to have EMB listed on more than one third-party exchange following completion of the ICO.
Because the team will do the best for their project. They will finalize the project perfectly to make this project favored by many investors. Hopefully, the team can make this project successful in foreseeable future.