Personally, I loved the NPC classes in the 3.5 DMG

I'll be glad to see all the classes be more useful out of combat, BUT, I love the feel of classes who *just aren't as good as the PCs in combat*, but are still damned powerful in their own way.
For exmaple, take "Lord Grim". Lord Grim was born into anoble family, he's never wanted to learn sword or magic, or do more than lip service to the gods. he doesn't skulk or sneak, tha'ts beneath him! Yet, he rules with an iron fist!
Why? because he's smart, hes great at manipulating folk. Ina fight any PC of equal levle should destory him...but he's not a simpel mook than can be killed in 1 hit, or easily charmed etc.
Running such folk as Experts or aristocrats, is great, I love it! I hope 4th ed can provide similar mechanics.
The physicla dangers from such people are their henchmen and armies! Or contacts, thieves guild who protects the guy who makes their thieves tools, or whatever.
It's hard ot play, but such characters should be able to out do or challenge the PCs in terms of swaying NPCs, the law etc. Thus, battles in the court room over verbal skills and knowledge of history etc can be fun "combats".
PCs should never (without great reason) be allowed ot walk in and kill Lord Grim, because you know from history and story that such would get them condemned by the King for treason: killing a lawful lord...or skewered by dozens of bolts from skilled mercenary guards (smart rulers do
not emply doofuses as guards), etc.
Thus they need to defeat him in other ways than mere "we charge him!"
