At StarWars.com yesterday, Denning addressed the squee and concerns:
Yeah — what I said was that we considered a way to use flowwalking to bring back Anakin. I also said that just because we consider an idea doesn’t mean it should be done.
When we began to explore what bringing Anakin back might mean for the rest of the EU, we decided the worms in the can were just too big to let loose. So, we decided to weld that can closed by making explicit the limits on flowwalking we had already been using informally since Dark Nest.
The idea of bringing Anakin back didn’t even make it past the “what if” stage — it was just one of a thousand things we considered that never saw ink (even in an outline).
So basically, kids, don’t get too excited: It was just an idea. (And I, for one, am happy it never got any further than that.)