Channel/Thread Limit

I am a member of a server which hosts asynchronous games of Twilight Imperium 4, and each game requires it's own channel/thread on the server. We have 700-800 members, and have been running into an issue where we cannot start new games due to the channel/thread limit. It would be nice if there was a method of increasing the limit, either by manual request, tied to nitro boosts, or in some other form.