While I do not like the idea there exist gnomes living in this area, it makes no sense runescape 3 gold since they are not sailors. However, I do enjoy the concept. Customs authorities are accountable for the official conduct of trade between the new continents and the rest. This tax system can be complicated, difficult, and inconvenient. People have been turning to illegal smugglers and pirates to trade because of anger towards the customs authorities. The quests can explore the conflicts between these two powerhouses and allow you to side with either one. Colonial Boston is the closest to real life.
Each region of Runescape is a region of medieval Europe or the close east. For example, Fremmeniks-Scandanavia, Karamja-Sub-Saharan Africa, Asgarnia/Misthalin/Kandarin-England, Morytania-Eastern Europe, Al Kharid-Arabia.
That really only leaves Mediterranean/Southern Europe, so it would be logical for the new continent to resemble Italy/Spain/Greece. This could be a result of iron age concepts. For instance it is possible to have two major cities that resemble Carthage and Rome (Carthage uses elephants Please).
The two are not in conflict, but they were in the past and are in the midst of a tense standoff. The route between them is highly guarded and you will be attacked by tough enemies if you attempt to travel on it. You could decide to choose either one or two cities, and then have quests that your character fights against the bad city. Or you could put them all on the same level.
North of the two cities lies a colder, wetter, and more mountainous area. The people living there look a lot like Celts, and are considered to be savages in the eyes of the southerners. These people look a bit like Fremenniks however they're hunters-gatherers living in smaller communities. They also have a conflict with the two cities to their south that want to expand their territory. This would be a good place to buy fire cape osrs host raiding dungeons if Jagex desires.