Well, since you took us off topic, here’s your post and my response. What’s the issue?
What you described is a bg, fixed equal faction balance. We already have bgs. World PvP is its own thing and not intended to be fair. It’s no rules chaos mode.
For fixed 50/50 to work in a zone, and maintain 50/50 balance, how would you achieve that other than splitting each subzone into a queued instance? If fixed 50/50 based on zone instead of subzone, could be 30 to 1 in subzone A, 1 to 5 in subzone B, etc. Therefore, no point in fixed 50/50 unless based on subzone and queued, no thx.
Maybe your logic can help…