Discussion boards in Rise

For anybody still requesting/hoping for this, I think the chances are slim, and for valid reasons.

A discussion board requires a database and users would need to authenticate to save data (discussions) in that database. I would guess most Rise courses use the SCORM API. SCORM does not provide the required fields to store data for a discussion board. It just would not be reliably possible across all of the different LMSs around. It just wasn't designed for that.

It might be possible to do this using xAPI, but there are not as many orgs using xAPI, so in order to use the functionality, you'd then have to ask people to shift to xAPI, which their LMS or LMS admins may not support.

SCORM support, although ancient now, still has widespread support and is the most frequently used API across eLearning.

For a discussion board to work, it would need to use a 3rd party database, which would then introduce another complexity, such as having to whitelist a 3rd party URL and mange user accounts outside of the current LMS. You would want the users experience with the discussion board to be  seamless, and so would have to look at Single Sign-on (SSO).

This is outside of the scope of an eLearning module and is more the role of a system..

Your LMS might have discussion board capability that would allow you to integrate into Rise through an iframe.