I don't follow MU close enough to know if there were other signs, but when, right after Toy Fair, it was announced that Vonner was laid off I think anyone paying attention could see the writing on the wall.
I'm assuming that Curto's comment will have something to do with Star Wars but it could also do with GI Joe or Transformers after the problems those lines have suffered over the last 6 months to a year (Joe, specifically but TF has had probs also).
I would not be surprised to see a big shift in the Star Wars lines, though. With the way DePriest was speaking at TF, I really believe we'll see the end of Vintage Collection sometime around the end of the year and the replacement line, even though it'll have some collector focus, will probably move in the direction that the Clone Wars and Movie Heroes lines are headed; less articulation, fewer accessories, more re-packs/re-paints/kitbashes. I would also not be surprised to see the Movie Heroes line go away and have just one Saga line...what might happen with the CW line I'm not sure yet. With the treatment it got this year, Hasbro could pull the plug on that also and do any future CW characters in realistic style like they did for the Tartakovsky Micro Series characters/outfits and they started with this year's Anakin/Obi/Ahsoka figs.
I just hope they don't can the MU releases until I get my Rogue figure!!!