SO, I have an update:
Two years ago, when I purchased my Connected 45, there were software problems with it, so I decided to find JC Biver's email and write to him directly (assuming I would get a corporate response).
I was very surprised to actually get a reply from him, and I had the email thread still (he had copied sales and engineering VPs that reported to him... so I replied to that old email chain with my experience in NYC -- and have gotten some replies.
I had a reply from one person who left watch operations early 2018 to found a company doing basic research for Tag, and has not been involved in the Connected project since fall 2017-- he tells me Biver left a year ago (which we knew), some others I replied to are on holiday right now, etc.
But said it was a highlight of his career working on Connected, and that Intel holds up the project as 'best practice'.
Tag Customer support replied this morning:
"My name is Maud, I'm in charge of the Customer Care at TAG Heuer's HQ in Switzerland. I was informed of your email to Mr. Biver, and wanted to thank you for your loyalty to our brand, and for taking the time to contact us and share your feedback, we really appreciate.
The Connected watches have been a massive success and are now a constitutive part of our core collections, such as the Carrera and the Monaco watches. We are very proud of what we have been able to achieve in term of design and technology on the first models, and we are continuously working on releasing new features, more accessories, and extended experience. The TAG Heuer Golf is the perfect illustration of this ambition.
I'm surprised to read your feedback from your visit in New York City and can't unfortunately confirm or infirm what they said. As I wrote above, we are continuously working on the Connected collection, but no information related to a new system of modularity has been communicated."
SO -- essentially no comment, but at least they got my feedback, and I replied reiterating that I would be reluctant to purchase the new model if it did not support existing modularity (hopefully I didn't get the dude in NYC fired)
More info if I get anything.