Based on the filings, it seems that Nintendo has trademarked Metroid: Other M and Super Mario Galaxy. Now these names aren’t new and are actually games Nintendo has launched in the past. However what makes these filings interesting is that they are broadly filed that will cover all bases, including “program for smartphone”, indicating that these are potential titles that Nintendo might be considering for mobile.
As far as the Mario franchise is concerned, Nintendo has launched Super Mario Run and come 2019, the company is also expected to release a version of Mario Kart for mobile. Assuming that these trademark filings are indicative of Nintendo’s plans, there could be a third Mario title for mobile in the works.
The company has not officially announced anything yet, although for all we know they could simply be trying to cover their bases in an attempt to protect their intellectual property, so for all we know it could be nothing. Either way we’ll keep our eyes and ears peeled for more information should it become available.