Depending on what she might want the Velo Orange Crazy Bars are pretty neat and offer some great hand positions maybe have her take a peek and see what she might dig. As far as gearing does she want a 3x9 or 10 or is she more interested in a 1x set up? Where does she plan on riding? Maybe one of those ScRAM Eagles would be just the ticket with the 1x12 and a wide range? Or maybe she is more the IGH type of gal and a Rohloff would be the cat's pajamas?

Ceramic bearings on a touring bike, probably not. No real need unless racing. White Industries makes some great hubs in 'Merica that aren't super 'spensive but very high quality plus you can get some colors which she might like. Also if you go 1x or 2x they also makes some really nice cranks as well. For rims I would look at Astral Cycling (the folks who do Rolf Prima) or Velocity or HED Belgiums are always in good taste.

However as everyone else has said talk more with your wife and ask her what she wants and how she wants to go.