They've changed the location,the storyline is pretty similar at all.
And,at least,we didn't change ANYTHING on the mobs and maps,even the ones what were untrainable,are now.
Elder Wraiths have a lolgodly respawn,Typhoons are in all four mountain maps,windraiders have their own map,that is actually the 2nd map from the entrance,which makes it acessible.
Same goes for Firebrands and Nightshadow.
Actually,this is our storyline:
Jack Barricade is still a treasure hunter,he's in many maps,he's waiting you at el nath entrance,after seeing him,he'll give you a map,and wants you to find the lost kingdom of CWK.
After arriving there,Lukan and Taggrin may help you to get past those maps,and give you more access to the others as well.
Fiona makes weapons with Tao's,which are dropped by mobs,and given in most quests,Lukan one for example,gives one of each.
After getting access to there,you should head to CW mountain,kill monsters,do the JQ,arrive in the keep,kill the guards and get their etc drops,get the key to the castle,beat the whole PQ.
The quest exp has been modified either,and lots of new ones were added.
This is my log of exp

Quests are level 80)
Talking to jack then finding lukan - 80k exp
Talking to Lukan and finding Taggrin - 50k exp
Talking to Taggrin,defeated wraiths and getting etc's - 110k or so
Talking to Lukan again - 100k exp
Doing joko's first quest - Kill windraiders - (There are other 3 or 4 quests,but was too lazy to do those)200k exp + potions
Talking to Jack and heading to the top of mountain - 220k exp
Defeating the guardians,Azure orc and Phoenix something (113k exp for each one) - 250k for the quest.
I'm stuck in the next one,so imma edit it ASAP.