

Introduction
Jonathan Mark Shiff, better known as Jonathan M. Shiff, is an Australian television producer of children's television series. After leaving his work as a lawyer, he founded his production company, Jonathan M. Shiff Productions, in 1988. His company produces programs for children and families, which are screened in 170 countries.
Announcement of upcoming projects
Shiff has announced some projects related to the already produced series, such as Ocean Girl: A New Generation as well as a TV movie as final closing act for Mako Mermaids, though no further details have been released so at this point it is unclear to say weather they will wrap up production at any point in the future.
While his professional homepage hints that a movie of 90 minutes length has been produced for Mako Mermaids, the B2B-site that ZDF Enterprises — distributor of the H2O franchise — operates for said show, shows no sign of such movie produced.
Shiff also hinted the Movie on social media.
Filmography
- The Bureau of Magical Things (2018 – present)
- H2O: Mermaid Adventures (2015)
- Mako: Island of Secrets (2013 – 2016)
- Reef Doctors (2013)
- Lightning Point (2012)
- The Elephant Princess (2008 – 2011)
- Pirate Islands: The Lost Treasure of Fiji (2007)
- H2O: Just Add Water (2006 – 2010)
- Scooter: Secret Agent (2005)
- Wicked Science (2004 – 2006)
- Pirate Islands (2003)
- Cybergirl (2001 – 2002)
- Horace and Tina (2001)
- The New Adventures of Ocean Girl (2000)
- Thunderstone (1999 – 2000)
- Ocean Girl (1994 – 1997)
- Baby Bath Massacre (1994)
- Kelly (1991)
- Search for the World's Most Secret Animals (1989 – 1999)