Sure. My company is focussing on communities that revolve around discussion and learning (mostly targeting teens and young adults). Some features we are working on are specific tools like a whiteboard that helps you quickly draw something to better explain. Or a library of common definitions (e.g., formulas for math, definitions for CS) that take the friction out of helping others. Furthermore, with our target group gamification and providing incentives to a meaningful discussion is important, so we're working on avatars and points that you can collect and use.

More general communities could use features such as:

- Monetization directly in the software vs. sending users to a signup and payment form (better UX, higher conversion rate)

- Discoverability (e.g., a search function similar to Reddit)

- Better onboarding for communities: For some communities, it makes sense not to be public, but to require a short application (for whatever reason) - currently community creators much build a separate website and send users there, etc. This would be much better if it existed natively.

- More focus on conversations/discussions instead of productivity tools

Just to mention a few. Of course, for Slack and Discord, it doesn't make sense to implement these features because it would dilute the whole product.