Invisible walls are a bit overboard.

[whoopeeragon]

I'd rather they keep the zones condensed with neat things to look at everywhere than open everything up and have areas devoid of anything interesting (Like in XI and 1.0).

1.0 wasn't exactly what I call 'open'. It was very flat, with as much invisible walls as ARR. I would say more, because at least ARR has the option for jumping.