I've seen this being talked about on the Lemuria/M&F Discord and it got brought up a couple times in private messages to me.
I absolutely agree on 'from scratch'. That's way beyond what our development team can handle and should be rejected. But when I imagined this proposal, that wasn't what I pictured. I'm almost certain there are libraries out there that allow generating a real-time chat interface that could fit our needs.
And I don't think its a bad idea either; I'm ambivalent if its a good idea. I'm *not* saying it should be approved and I told Tali and others that privately, but I don't think the concept of an in-game real-time chat should be flatly rejected either. As I understand, M&F might implement this soon and I'm more interested in observing that first than coming to a firm decision for having such a thing in BattleMaster yet. What I did tell Tali and others is that even if I think its not a bad idea, I do not think our development team can reasonably put that on any near-term agenda if we were convinced to approve it.
*If* we were to do it, it seems most sensible for those characters physically in a region, members of a realm, members of a religion, those at a tournament, and prisoners in a dungeon.
M&F probably will implement it, but soon is probably a stretch. We have one active dev, and myself pretending I will get to doing something eventually.