If the game remains true to the pen and paper version of 3rd edition, then no. However, from what I've read of the game they aren't exactly following 3rd ed to the letter.
Which is irritating.
Multiclassing works differently in 3rd edition, in that any race can do it. Dual classing no longer exists. However, multiclass isn't the same as it was. In 3rd edition, you start off as one class, but when you go up a level, you can choose to either go up in your current class, or to take a level in another class. So a lvl 1 fighter could become a lvl 2 fighter
or a lvl 1 fighter/lvl 1 cleric.
What relevance does this have to kits? Well, instead of kits there are classes called 'Prestige Classes'. These are special high powered classes that are only achievable through
multiclassing, and only after certain requirements have been met. So, a lvl 5 rogue could choose to become a lvl 5 rogue/lvl 1 assassin instead of a lvl 6 rogue - provided he met the requirements.
However, this may all be a null point, as from what I've read this system isn't being translated as accurately as it might be. For example, it looks like the assassin will be available as a class (or kit) straight away.
I never liked kits, and I much prefer the 3rd edition system. However it looks like kits may be making an appearance in NWN.
P.S. If you already knew all this crap about 3rd edition, I apologise for ranting on.
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"Our deepest fear is not that we are inadequate.
Our deepest fear is that we are powerful beyond measure."
[This message has been edited by Sharpedge (edited 08-26-2001).]