It would depend, I'd be all for a good subscription plan. Lord of the Rings Online has a pretty terrible plan, but Tera has a pretty good one, so it could go either way.
Completely agree with bullet number 3. I am very concerned that the game won't have the huge vistas and nice big landscape to explore, what fun is exploring Faerun if is just small zone after small zone? I really wish each zone ran into the next one, and yes, heavy instancing does kill immersion for me.