I am beginning to wonder if some of the large Japanese companies are getting tired of amateur radio.
When ICOM introduced the IC7300, Yaesu looked like they reacted and quickly brought out the FT991A. Yaesu seems to have "gone off the boil" in recent years. System Fusion is being pushed, but years after DSTAR. Most of us remember Betamax, VHS and Video 8. The last thing we want is a standards war.
There were no new products launched at Dayton, at least nothing was reported. I am beginning to think the Japanese have decided to introduce fewer amateur radio products. Perhaps they see a dwindling market with less profits in the coming years?
As for an FT817 successor - I think this is never happening.