Nobody's said it yet so allow me - if you think that moving up from the Sporty to a Big Twin is going to open the door for a lot more two up touring type of riding, then why not consider a used Touring model as well? Better passenger accomodations, luggage capacity, music, etc. Hate to see you posting in a year about which Touring model you should trade in your Heritage for!
Seriously, I would not get mentally locked in on any particular bike at this stage. Test ride a lot of them, wife included, and then make your decision.
Seriously, I would not get mentally locked in on any particular bike at this stage. Test ride a lot of them, wife included, and then make your decision.