There are actually 3 releases.
The first was for the 800 speed film, the second was what prompted my original post here, and is a pre-release of the comments due today at PMA. Those comments today at PMA are the 3rd release and will just expand on what we already know about Mary Jane Hellyar's statement. BTW, she spent a year as president of one of the digital units moving from film to digital back to film recently. She and her husband both work for Kodak and are very competent technical people. She knows what she is doing.
Kodak continues research and development at a reduced scale on conventional films, but you must remember that film is a mature science and it takes a lot more effort to yield even a small advance. The 800 speed film was a difficult endavor.
Now, as to product lines. Lets assume that production is 1 mile of paper / roll, and that 1 roll uses one vat of emulsion melt and takes 1 day to produce. If that emulsion must be made at 100 x the melt size, that means that they have 99 more batches of emulsion to use for that product. They therefore have to sell that 1 mile of paper before those 99 remaining batches of emulsion go bad. What if it takes them 2 years to sell 1 mile of paper and the exipry date is 2 years. Then when the last box goes out the door, it is expired.
OTOH, some products coat daily and sell that 1 mile each day. The first product I described above could be a B&W paper and the second I describe could be a color paper for example.
Now, you may say scale it down. Ok, if they do that they have to re-engineer the emulsion to work at smaller scale. It isn't like making a large automobile engine and a small one. Chemistry doesn't work like that. So, they re-engineer a product that doesn't sell?
There are those of you out there who trivialize this whole thing. I spent 15 years working on up and down scaling emulsions. It is not trivial and is very expensive. I can just as easily take pot-shots at anyone's profession if I don't know anything about it, but I run the risk of being very very wrong. Take it from me, Kodak is trying to cope with serious problems to keep us all supplied with conventional photographic products.
PE