Just a couple of comments really.
I found I loved questing in NT, and the chain that really got my attention was the one that took me into the Deadlands.
Was made to understand from several people that the Deadlands is intended for groups, hence the difficulty of the skeletons outside it.
Personally, I didn't want to move onto Kion and further, without completing NT as fully as possible, so perhaps, more my own stubbornness than anything that made me accumulate so many DP's and not asking for help/groups.
Anyway, I digress. Part of the reason why I loved levelling in NT was the fact there was a active group of people always there to talk to and socialize, and I would have stayed longer if I could, now, rather than leave NT when I was perhaps meant to (level 9? I dont know), perhaps a more solo based questline could be setup, in a similar vein to the Deadlands (class specific?) one which could tire out / wear a newbie down and perhaps dishearten them.
There wasn't a particular reason not to move onto Kion, otherthan I knew it was a much vaster island (Lesser Aradoth), which I think, in it's present state, needs some work (already made suggestions to Amon) to not lose a given player.
Just my take anyway :-)