Triforce was implemented as a special tournament, what succeeded triforce was the ocg tour and the next successor will be a special tournament again.
The idea will be kept in mind but it is very hard to implement because it is asked to pick 3 specific members who are willing to give that much time for a live tournament and all happen to be willing to do so at the same time. The reason live tournaments work as they do is that at a specific time you find all those who are willing to give the time at that point, on the other hand trying to arrange the participants, even if just 3, while having to upkeep the condition "best of their dorm + active", would be extremely hard as you'll understand if you think about it. At the same time, having to find that specific time in the month every month makes thinks all the more difficult.
If on the other hand it was a tournament, for an additional tournament to be done at specific time intervals and with a strict time limit, which could easily either deteriorate to the worse members having a glorified minitour or the same guys doing a personal tour every month, is a hard idea to implement as well.