From reading that article, with very few people knowing, I believe Disney had nothing to do with it. I don't think they would let Hasbro in on the sell way back when they started talking about it.
I honestly think it's just another thing hasbro is doing to make money on the Star Wars brand
They have done different scales before, so this is nothing new.
They did the galactic heroes, jedi force and what not for kids, and now they are going to do another scale for the collector.