just the paucity of authoritative inside information in general
Which is pretty standard. It just would help if more people weren't fixated on the idea that Harman's scientists are total neophytes and idiots (and who must bow down to the
supreme knowledge being handed down from photo hobbyists riding their hobbyhorses on the internet). By way of an analogy, there are ways to go to space in 2024 that don't involve a Saturn V, some of those are better than others and not all of the ones that work reasonably well are from those with a direct aerospace hinterland.
After 2003 no further developed consumer film products have hit the market.
There were several quiet revisions even in consumer film for 'manufacturability' - which can mean total reformulation. From what I understand, the cinema emulsion team and the still emulsions teams were separate and while they may have been drawing from a common technological data pool, they were not sharing staff - and those that weren't needed were being shed by the business. If you look at the revisions/ new introductions after the move to B38 was completed (which required re-formulations) there are essentially products that in order for them to have been launched when they were, would have easily filled the time 2003-11 - the 2006 revision of NC/ VC, 2007, TMY-II, Portra 800-3, Ektar, Portra 400, Portra 160, add in the manufacturing revisions of Gold 200, the Ultramaxes etc - take their launch times and count back 18-24 months, plot them on a calendar and you'll see that 1, maybe 2 teams would have been going project-to-project. A lot of the 'new' technology was the application of extant knowledge from 5-20 years earlier (if you want to waste hours in the patent record and academic texts).
Harman have plenty of work ahead of them, but some on this thread want to pretend it's so impossibly and implausibly difficult that they
must not be able to succeed, when the reality is they have the map, know what they need to do and are steadily working on solutions (depending on budget being available). The fact is that Phoenix has sold better than projected, and at the end of the day, that's all Harman's R&D budget cares about - it's made them money (and delivered a very public statement of intent) on something that would otherwise have been scrapped at a loss after it had served its purpose as a research stepping stone.
Kodak's chromogenic films have not been mainly addressed to the professional market.
Maybe in Germany where there seems to have been a bigger advanced amateur market.
Elsewhere, T400CN was sold under the Kodak Professional brand, as was Portra BW400CN.
And from proper done tests side-by-side T-grain in comparison delivers finer grain, higher resolution, in the cases of TMY-2 and TMZ also better sharpness.
Perhaps. Some of the problems I've seen in those tests involve insufficient normalisation of real relative speeds. And a lack of curiosity about how 'latitude' has impact on aspects of sharpness and granularity. The end products are all designed to somewhat different ends to begin with, often as a reaction to how the market understood/ perceived a competitor's earlier product. Very few are/ were designed on a complete tabula rasa basis.
Kodak also has epitaxial technology (Maskasky et al), but it only ever seems to have got as far as enacting it in X-ray materials. With the 'normal' photographic materials, they clearly chose to refine the technology they know (and add layer dye/ 2 electron sensitisation which essentially bought them 2 stops of speed/ grain improvement) rather than digging deeper into basic emulsion work. Which isn't to say that the use of high aspect ratio crystals in one layer and 3D structures in another is effectively an analogue of epitaxy by another means, with some of the potentially expensive and time-consuming research problems avoided. Epitaxy potentially seems to allow for a much thinner emulsion layer that behaves like multiple emulsions - but with a narrower qualitative exposure window (e.g. granularity becomes sharper and more obvious when overexposed).
There are (I think) open questions over aspects of technology sharing over the years between Ilford and Agfa and Ilford and Fuji which we'll likely never hear any real details of. But there are some interesting correlations and SEM images that raise more questions than have been adequately answered.
That are their current main emulsionists, the leading staff.
They happen to be two researchers working on Phoenix, the more senior of whom seems to be leading that project, but there's a fair few relatively new intakes of various levels of experience - Ilford have even interviewed some of them on their website. The really important people for a project like this will be the organic chemists in the kilo lab.