So anyone who does play arena knows 3v3 premades are kinda dead. Only solo/duo does work. Another issue is 5man premades completly destroying opr games.
Can we balance this? My suggestion is put some daily time window lets say 20-22 or anything at evening:
Arena: by default runs only solo/duo but for this 2 hours does swap to 3v3 full premade only
OPR: other way around. For this 2 hours does swap let say max 3 ppl premade team.
So solo/duo players can always play 1 of this 2 modes. And same with full pramdes - allow them to compete vs each other. And we can achive this with out spliting player base into more variants of pvp modes.