Sofia was all BK's idea way back in 2014 and none of the models involved any new architectures as they involved pairing existing silvermont/airmont cores with intel modems on the same die. I thought the 28nm tsmc one was a complete waste of time as it negated Intel's in-built foundry advantage over fabless competitors but the 14nm airmont Sofia could still be and should be done now as it would be a compelling product at the right price.

Tie that up with a high end modern Medfield like a single core Skylake with smt and intel would have competitive mobile products again but this would require a CEO with a clue and the attention span of an animal higher than a goldfish !

https://www.cnet.com/uk/news/meet-intels-sofia-the-new-low-cost-smartphone-processor-created-in-singapore/