Complaints about unequal respawns will, in theory, quickly fade away. People have already come to terms with the inequality of respawns and play on them just fine — it won't get any worse.
I don't know, I don't know, I've been thinking for a long time about writing a map generator from scratch. Technically, it seems like a feasible task to me.
For example, a sea map generator would be quite appropriate. The standard generator cannot create them, and various add-ons over it, like the WoG Seafarers, have limited capabilities.
More importantly, players should form a set of criteria for "equality" of zones — that's harder, IMHO.