PeWe, I say you find one and sit on it and spend some time going over it. It might scratch an itch, read reviews of it after it comes out, RevZilla, Motorcyclist, etc., etc. and if you like it after all that, then discuss it with the wife and get her take on it. Have her see it in person with you after you have spent the time to go over it and check it out in detail. Think about what it will mean long term in your retirement nest egg. It is a 900cc bike so it should have healthy hp and torque. See if you can talk the dealers into a test ride...bring your insurance policy to show them your coverage. Not enough to just have a license. Ride your 750 or your billet block 750 to give them something to drool over and show them you take care of and have nice bikes in good shape, not beaten up dented up beaters. That would give me a better feeling about risking a bike with you. Here most won't give test rides because that can turn a new bike into a demo used bike. Talk with Kawasaki in your country to ask for a demo ride, they may have bikes you could ride.
Be persistent.
If you like it, buy one, it's your money and your bike to enjoy.
I bought a new street oriented adventure bike, VStrom 650 XT Touring as it was what I wanted and it gave me enough off-road performance for my limited riding of dirt and sand. Off-road riding and I wasn't part of my history. My parents even if they could afford it wouldn't have let me on a street bike. Honda 50 Trail 50 was my introduction to riding through a neighbor who had one and we rode it in his large yard.
I didn't ride while my kids were growing up and I started riding again when in Tucson from 05-08 and bought a Honda Passport for commuting to and from work and exploring on weekends. It gave me the bug again, picked up my 11/69 build (CS-90) S90 (former servicemen's order from Honda Japan to use while stationed there and bike ended up in Washington state before spending a couple years in TX as a CL90 like substitute riding in western Texas by the lady in El Paso I bought it from... Bought a rough project bike '65 CA95 Benly Touring 150 for $350 and then in Sierra Vista from 09-13 I bought a '78 CX500 and then another project '74 CB550. Tore down the CX motor to do quad bypass & some other reliability maintenance items before moving back to Tucson and didn't get it finished before the move in '19. I haven't hardly touched it since, it needs a respray of motor and I have everything to do the work now, just have to overcome my depression to get it restarted and done. Bought my VStrom in June '19 after the dealer got it in... Rode that summer & fall and since moving back to Tucson in late Oct '19.
So, don't let Terry and SteveO dictate your purchase.
She could be closer to the original sure but it is a retro-mod modern take with styling cues from the original. It has enough modern naked/street fighter to appeal to younger riders and hopefully the older riders might like it too and buy them too.
Very few true retro modern Std bikes like from the 70s...count them on one hand...
Honda has been creating uninspiring bikes like the CB1100 and the CB500(F/X/R) variants. Good motors but in case of the 1100 it was massively detuned from what most wanted when buying an 1100 or L bike and the styling didn't appeal to old 750 owners like many here unless you spent $3-4k more for the fenders, tank, side covers and whatever else made them more retro to Garner the live of 70s CB750 owners , past and present.
I liked the styling and wouldn't mind having one, but the CBR1000 is another or the CB900F...
There is a nice black CB1000 on BaT that is up to 4k already with 5 or 6 days left on auction. Probably a 9k or 10k final price, just swag on final price.