The expected Amateur Licensing general release for MAMMA MIA is Fall 2018.  Barring any restrictions or delays, your company producing this title during Spring of 2019 shouldn't be an issue.  Of course, the only way for you to know for sure is to apply for a license when you're able to do so.  To be in the know of any changes to the status of MAMMA MIA, please visit the Show Page and click the FOLLOW link.  This will send you email updates when any changes are made.