+1 for Sirius Glass, he has been around long enough to know what's what about life (and photography)!
Why not take the oldest digi camera you own? Travel is about travel, not dragging along the best(or all the) nice shiny new photo gear you own. Go for the experiences, the people, the food, the joy of being on the road. Good travel has to involve some discomfort, cultural or physical.
New gear lmakes you worry too much about the gear, and encourages you to hide behind the camera and avoid having to deal directly with what you see, or not confronting the reality that you are really uncomfortable at being in new situations. So you miss out. On a lot.Mostly learning about yourself and what it is about new cultures that stimulates you or make you tick. Or yes, even upsets you.
As for what you shoot on the trip, well! Do you download and and put all your nice travel brochure shots OL as you go? Or back home, you post the 27,938 images you took in ten days or two weeks, of beaches, baby dolls in local costumes handing out flowers or (the gods forbid) traditional markets you were taken to on the guided tour of Bangkok or Jakarta or Bali? Also the thousands of selfies of you and the SO taken in front of views that really would be so much more interesting without you/the two of you blocking off the highest peak or row of beautiful palms.
(Selfies are okay, really they are. But do we really have to look at them?)
The KISS principle. Less is better. These days I travel with a ten year old Nikon D90 and the kit lens it came with, a UV filter, two batteries, a charger and a download cord. That's it! Before that, a Canon G10, until it died. (Small disclaimer: I also own a Nikon D700 and too many lenses, but it's too heavy to travel overseas with.)
If I ever have to buy new gear, I will go for one of the small Fujis. And one lens. For me, the 18mm. Or the zoom.
This lets me focus (pun intended) on enjoying what I see, and learning new things. And devoting time to my partner as we go.
On our last trip together, as an experiment in minimalism, we visited Malaysia, Sarawak, Sabah and Brunei with a 1960s twin-lens reflex camera and small bits (lens hood, UV filter, exposure meter, 30 rolls of film). the old pre-digital way. I shot less, but better. Scanned about 100 images, have sold 15 to a book publisher. For me, less is most definitely best.
My partner had a P&S digi camera and shot much less than I did, being more a foodie, museums and art gallery traveler. We went by bus, train and once by river boat, swam at nice beaches, climbed one or two small mountains, saw several interesting cities (definitely no markets), ate our way through three cultures of excellent food, drank Tiger beer in local bars or street stalls, and took long walks. Made friends with a few dozen locals and several hundred friendly cats. A family we met in Sarawak have just invited us to return for their son's wedding later this year.
This is my idea of "a good trip". Yours may differ, but we should all try to not make it only or entirely about the camera.