I would say no, mostly because we're talking about Andray Blatche here. Occasionally a player completely changes course at age 26, but it's smarter to bet against this happening. I believe we'll be seeing more plays like this in Brooklyn if Blatche manages to make his way onto the court:
This is not to say Blatche lacks talent. He's large, long and could conceivably play either frontcourt position. He has a nice-looking jumper, though it doesn't go in enough to justify how often he hoists that shot.
Blatche's problems, though, are manifold. He doesn't create for others, averaging more turnovers than assists over the course of his career. When he tries to operate outside his comfort zone of simply shooting, disaster often ensues.
Blatche also has "character concerns," a broad description that applies to things such as participating in Gilbert Arenas' finger guns display (via ESPN) to openly staring down his coach after a made basket.
All of this could be shrugged aside if Andray Blatche could play passable defense. He can't. He's an atrocious defender, by instinct, effort and conditioning. Few are worse on that end, and frontcourt players are crucial to almost any defense.
Perhaps I could envision a Blatche fit in Brooklyn if it needed his services. The problem is, he's good at what the Nets have and bad at what they need. The Nets have scorers in Joe Johnson and Brook Lopez. Unless there are injuries, they should be fine on that end.
What Brooklyn needs, desperately, is defense. It was the second-worst-ranked club on D last season, and there is little reason to expect a massive improvement this year. Lopez is returning from injury, but he's one of the worst defensive centers in basketball.
Where does Blatche fit in? What is his role? On this particular team, I can't see it.