I would recommend this website:
http://www.ffiec.gov/hmda/ and
https://www.ffiec.gov/hmda/guide.htm Look for the 2010 A Guide To HMDA Reporting link near the bottom of the page. You'll find everything there, including how to find if you are in an MSA.
BUT - be aware that the regs are changing, and depending on what length of time "in the future" means, you might want to look at the new regulations, which become generally effective January 2018.
I don't have a link to the new regs, but maybe someone here does. You may even be able to find them posted here at BOL.
Good luck