Dreyfus has already partnered with WisdomTree in providing eight foreign-currency themed ETFs. [Euro ETFs and Jim Rogers: Time to Buy?]

Other firms looking to break into the ETF biz include: JPMorgan Chase, which filed in March to launch active and index-based ETFs. Eaton Vance filed in March to launch active funds. Legg Mason, filed in February to launch active ETFs.

For more information on new ETFs, visit our new ETFs category.

Max Chen contributed to this article.