@rdelaage @rtfm There are currently no plans to add a paywall for Boards plugin. Boards is currently in maintenance mode by providing updates for security vulnerabilities and support for our Enterprise customers. Boards updates are not available in the in-product marketplace but new releases can be found in the Board plugin repo at: Releases · mattermost/mattermost-plugin-boards · GitHub
As mentioned in What's Next for Mattermost Boards, we are exploring future options to incorporate Boards-like functionality into the core product that will eventually replace Boards plugin. This is still long-term vision, no yet scheduled and once more concrete we will share migration paths if necessary.