I did read several of the articles regurgitating Bloomberg's sourceless rumor - but Bloomberg only ever cites, "according to people familiar with the matter" and "another person with direct knowledge said". This is the type of things that psuedo-journalists do when they interview each other because the actual executives from Samsung aren't providing anything juicy like this that'll grab more headlines. If Bloomberg had broken this story in February of 2016 and said, "Samsung believes Apple is going to stall, rushes production of Note 7" - and then it happened, that'd be breaking the story and believable. This issue started in August and on September 18th they come out with this rumor, again without any sources to back it up or any evidence, such as interviews with supply chain contacts, shippers, retailers, etc - that means it's almost certainly total nonsense based on a need to publish more things about the scandal rather than on any journalistic principles.
But we could try to find out - contact Verizon, T-Mobile, all the carriers, Best Buy, FedEx, UPS, etc. and ask them if Samsung gave them one date in Q1 to prep materials and logistics for the launch and then in Q2 or Q3 suddenly changed the date.