Let's look at it from Honda's point of view... if that's something we can do.
1st off... the U.S. market is probably mostly cruisers and Wings... a small slice of that is probably the sport bike segment and a tiny slice of that is sport touring... so, why market to the smallest bunch in the group.
2nd - the above groups, with the exception of sport bikes, are probably up in age.
So, from a business perspective, you've got to look waaaay past tomorrow and look at 10 years from now. That means creating something that calls out to the newer riders that can't afford a big bike nor the insurance the comes with the sport bikes - viola - the 500cc segment.
Something else Honda does by doing this is up-size the more popular options available in 3rd world countries that historically buy the under 250 cc bikes (and smaller) ... you now just gave them an option and that's a HUGE market.
As for the Wing... A lot of the Wingers will really like that choice, nothing wrong with that, I think it looks nice and priced lower than the base model w/trunk. So, Honda was able to address both the cruiser and wing market with an option that perhaps both (or an overlap of both) will look at. Pretty ingenious if you ask me.
Don't worry, I have a feeling the Sport Touring market will be addressed - I wouldn't worry too much about removing the sport touring category and calling everything touring - it means they are 'thinking' about things and that's good. Only they know WHEN things are going to happen and with the exception of the GL1800 back in 2001 I've never seen them leak any info at all on a bike reveal.
If you stop focusing on the small slice of sport touring... and you take a few steps back, you see what they are doing and it's good for everyone but mostly good for Honda.
Patience is a virtue they say and that is the case when waiting on a Honda motorcycle but the good thing is when it happens it's usually the more reliable of all the other options out there.