Welcome Ian.
Can't say any usefull things about the new radio, I just have the older FT100, FT 847 with Collins filters and the FT 2000 - D I'm using now as main radio.
Reading Eham reviews won't help you a lot either, too much Yaesu haters writing bad reviews and too much Yaesu lovers that will only give high marks....

Complex radio's like the FT 2000 - D need at least 3 to 4 months intensive use and tinkering before you have set things right and understand the workings of the radio, so any review that is done after a month is bogus.

In my view it is a relative expensive radio for a DC to 70 cm set, but if it floats your boat, go for it.
I still remember I paid over 3000 euro's or 6200 dutch guilders for the FT 847 with extra Collins filters..... and have had 18 years fun with it, still in use as spare set.

Does it need to be a new transceiver?, a set for use at home with a deep menu driven transceiver will become annoying, my FT 100 was good for use in the holliday season in France, but I would not use it at home as main transceiver, for that a bit larger front driven knobs is a lot easier, like a good FT 847, or something similar.
I only bought the FT 2000 - D for the 200+ watts output on HF and 6 meters, and the controls on the front, the 152 settings in the menu are most one time set and forget items...

It also has Class A setting to drive the Heathkit SB-1000 amplifier.
Best thing to do is being able to use the transceiver for a few hours to get the hang of it.
Don't decide too fast... and good luck with your choice to make.

Cor