We are in process of bringing back Weekend Cups to Bannerlord. Rules are being worked on at the moment with first, exhibition, edition being planned for next weekend.
I can tell you already that we wont be having class limits.
This is taken from our rules:
"Throughout the duration of Bannerlord's Early Access stage Weekend Cup
will remain a tool for the developers, players and general competitive BL community to experiment and test game's classes, factions balancing, match formats, equipment and perks in the competitive environment."
So maybe this can help with testing classes bit more, without risking BEAST's class limits rule set (if the voting goes that way) that has been working nicely for that competition so far.