All the teams from the top levels of each server, will create mixed League, CL/SL, Cup competitions after random draws according to their quality.
But the quality from FA point of view, not by level.
Like we play the asso games or the events.
So one League can have 3 teams from LV81, 3 LV80, 2 LV79, 1 LV78 and rest LV77.
Of course every manager will have access to the market of his level.
I believe mixing the top 6 or 7 top levels will be enough .