@LaRaj doesn't create chat room command work? I understand not everyone uses voice chat but we can still create a chat room only for a specific bunch of people and everyone involved in a run would use it instead of group chat.
Off topic-I don't have a clue how crypt would be in its current form but with many more players (probably crowded) but I kinda agree with Roekai (make pigs fly now please), I'd miss it. Don't mind me, I miss the old tutorial cave so much that I sometimes go in its replica just for old times' sake. Maybe if the crypt gets redone it could be just a design improvement and not a complete overhaul?:D
@what Crissa posted-few people suggested this already-we could get a group summon because in long dungeons like GK sometimes people need to leave half way and there's no way to replace them atm. Maybe a new teleport skill called "group summon" that would require some gems or whatever to allow us to replace a group member.
PS I get it's mildly off topic but no thoughts on a mentoring feature?:) It's kinda connected to the group size/communication issue.