Route 8 in Satori actually ends, at North, in Soulgiver sim. Close to that, there are several abandoned lands, so the road could be extended to South West, crossing Gnoll, Dakhanavar and Vampyre. Also, some bit might be added to Ever After and Succubus sims. The new extensions would develop the whole gorgeous Inner Lakes area.
The idea comes from 4lice.Cerise, who drawn the map attached.