After further mulling this over here are more ideas:
New carry on bag. I bought an Eddie Bauer Trolley carry on before our last trip and I love it, but I just ran onto this one, and I love the organization of it.
https://www.amazon.com/gp/product/B...4df-15aac5223b10&pf_rd_r=AEX3MSS30V4Y2HBSBX5V
TSA Precheck or Global Entry - This would be for both of you, and I know it's extortion-ish, but it's so worth it. As a female, having makeup, a laptop, my camera, and all that crap and you have to take half of it out of your bag and take your shoes off is SUCH a pain, but with Precheck or Global Entry it makes it so much more hassle free, and I swear the agents in the precheck line are nicer.
iPad or Kindle - I took my laptop, so I could fiddle with photos, but if she's not a laptop gal, a kindle or iPad would be a good thing to buy if you don't already have them. I carry my kindle everywhere. I read in the blind, in the truck, on the plane. It's a good time killer, when you don't have phone service.
UGG Slippers - There is literally no shame in my game, so if you ever see someone on the Delta 200/201 looking like some hobo girl with camo on drinking jack and coke like there is no tomorrow it might be me. If I'm flying, I'm going to be as comfortable as possible, and I don't give a crap if someone thinks I look ridiculous. These would be excellent for wearing on the plane, and around camp. They have decent soles. And as UGGLY as UGGs are they are really comfortable, and if you wanted to go high end Russell Moccasin makes some similar shoes I think.
https://www.amazon.com/dp/B01NCJRZP9/ref=nav_timeline_asin?_encoding=UTF8&psc=1
A new purse for travel - men don't understand this, but the purse I carry at home is not the same one I travel with. At home I have everything including the kitchen sink, a pistol, a knife, and 400 other things floating around in my purse, and much to my chagrin I can't fly with a few of those things I listed off. And I may have lost 2 different knives to TSA in the past for carrying my normal purse though security, so I've learned my lesson and I have travel purses. This is what I carry, and it fits my bose headphone case, my kindle, my RFID blocking passport holder/wallet (also a good gift idea) as well as gum, pony tail holders, chap stick, etc.
https://shop.lululemon.com/p/bags/Festival-Bag-II/_/prod800211?color=36463
And last but not least I know you said she had gear, but this is high end made in the USA for women upland clothing, but holy moly it's beautiful, and I want the pants and shooting shirts for our next trip to Africa.
https://shopmckennaquinn.com/