However, I have to chuckle because I find myself getting "turned around" much more in LoTRO than I ever have with Istaria's cardinal directions. For example I quite literally can not get in my head the fact that Lonelands is west of Trollshaws (and yes, I honestly did have to picture a world map and THINK through the cardinal direction as I typed that), and that to get from there to Bree I have to go west. And that's after having leveled multiple characters through those areas.
On the flip side, ask me where Dalimond is compared to Chiconis, and I can quite easily tell you that you have to travel north-west without even having to think about it.
I'm not saying that an arrow wouldn't help some people, btw, with becoming better oriented in Istaria. Just that in my own personal experience, I like the N/S and W/E of the Istaria compass for getting pointed in the right direction. It's interesting to me how different people learn, is all.
No clue if what is being asked for is even technically feasible as things are right now, just making an observation.