Why not an "inspiration" for other editors to begin the mentioned page?
Mention of PlantUML
PlantUML recently added "Activity Diagram" functionality. I believe this would justify putting it under "FOSS" on the template (and it would likely also qualify as "Java-based").
Proposed changes: new title and new subsections
I propose that the displayed title of this template be changed from "Concept mapping and mind mapping software" to "Argument mapping, Concept mapping, and mind mapping software" since some of the listed software can also be used for argument mapping. See, e.g.: Davies, W. Martin (November 2010). "Concept mapping, mind mapping and argument mapping: what are the differences and do they matter?" (PDF). Higher Education. 62 (3): 279–301. doi:10.1007/s10734-010-9387-6.
I also propose that the Proprietary section be divided into two subsections, Desktop apps and Web apps, to differentiate between software that is installed on a device and software that is accessed via a web browser. Biogeographist (talk) 15:41, 9 January 2018 (UTC)