I'm still playing Wasteland 2 (the base game), and now with the release of the Director's Cut version, can I import or transfer my base game saves to the DC version?

Nope, they are separted. InXIle already said that due the differences the saves are not compatible.

That's sad! 8-(

Thanks for the reply :D

Correct. Old saves cannot be used in the new version of the game.
Before I knew about this I tried moving my saves to the Director's Cut folder and they don't work.
So I came here and read about the dev's statements.
Pitty, I'm half-way through... too late to start a new campaign and too early to wait before finishing the base game to start a new game.
:(

There are too many changes for old saves to work - quirks and perks for instance - but you may be better off to just play the original game at this point anyway, considering there are some bugs with the DC that I hope they will fix asap.

Yep, that is what I decided. I thought about the new bugs and the re-treading of all the harsh terrain already covered (mmm... that bit sounded pretty post-apocalyptic actually) and it was the sensible thing to do. Finish what I started and then as a second play-through just do the Director's Cut.
Well, back to the irradiated wasteland to carry on my duties.
:)