Idea:
What if, everyone in the game had roles? Like instead of their being only 3, they should have a detective, murderer sidekick, etc etc, with more roles it would be more funnier
Welcome to the forums 
This is a good suggestion. One thing Hive has to consider is the age range of the players who are most active on the server.
When it comes to Bedrock edition, the primary age range is a lot lower (8-10 ish), so keeping their games simple is very important.
Aside from that, this would be a very cool LTM (limited time gamemode)! It would definitely make MM more fun 
I hope you’re having a good day 