The most satisfying answer in JKR's chat

[greatelderone]

No: HPFGUIDX 92304

--- In HPforGrownups at yahoogroups.com, Mhochberg at a... wrote:
> What changes in motiviation and character behavior would she make? 
Would 
> Vernon Dursley be crueler or more sympathetic? Would Petunia be 
less sure of 
> herself? Dumbledore is so two dimensional in the opening of book 1. 
What would the 
> book be like if we saw more depth in him right away? Would his 
humor be more 
> satisfying or more trivial? 

Frankly I think the initial 2Dness or lack of depth of the characters 
should be kept. One of the things I liked about the books was how we 
initially though that the series was going to be another cliche 
childrens books only for our expectations to be proved wrong which is 
one of the strong points of the series being that it plays on and 
breaks expectations for better or for worse.