With Blake expiring in the offseason, Crawford being more of a combo guard, and Douglas getting dealt to Florida, I'd say Nedovic's best chance of making a splash will be in this year's summer league. When Anthony Morrow and Anthony Randolph blew those tournaments up (dropping 40+, averaging 25ish, displaying moves and initiative), they got some serious run in the preseason to determine if they could be trusted with a bigger role when it counted. The Warriors struck outta the 1st round in this year's draft. If they intend on fixing backup PG in-house, Nedovic has a real shot at it next year.
Of course, all that goes to hell if Blake resigns... but I doubt the Warriors will make an enormous effort to retain him if a dumb spender (like, say, the Lakers *cough* Kobe) make Steve a laughable offer. You don't wanna pay him like a starter; but if Blake can be had for a deal similar to the one he's got now, then I hope GS makes an honest effort to bring him back. It took him no time at all to develop chemistry with some of the crew.
And I can honestly say I haven't seen a PG orchestrate our offense this smoothly since Baron Davis. Steph, Monta, Nate, JJ, CJ, etc... all closer to being shot-happy combo guards than actual point guards. It's a joy to watch Blake work. He understands the geometry of the game so well; the spacing, the timing, he doesn't rush his passes or force them into tough situations, he knows when to bounce it and when to send it, he finds the hot hand, he goes into a play with the intention of finding the open man... he's just a real proper point guard in every sense of the word. If you can't already tell, I dig his game.