At the moment I am happy with the rigs I have, so I can wait to replace rigs.
At the moment the IC7300 looks a favourite over the FT991, but a decent FT817 replacement at the right price might fit the bill. All decisions on future investments are predicated on the price being right. I want dealers to make a fair margin, but I do not like being ripped off. On the IC7300, dealers are making a mint out of early adopters who want the rig at any price. Later, the IC7300 price will drop.
I am awaiting Dayton to see if Yaesu really does replace the workhorse FT817. I have my doubts. As you know, 5-10W is quite enough for me.