corama

That's one of the reasons I am selling the xt2 and going back to xt1
I find that "battery saving feature" a huge nuisance that interferes with my work flow.. 

On our latest city trips, I just took a 27mm and 18mm with me.

I travel a lot too, I'm usually happy with just one lens and one backup. Usually 35/2 on the cam and the 16 in the bag.
 
In your case, I'd just pickup the 16-55 and a fast prime for evenings and indoor.

An intertesting subject. But with 2 XT bodies and your existing lenses why do you "end up changing lenses a lot". I have an X-T1 and an X-E2 and I keep my 10-24mm on the X-E2 and an 18-55mm on the X-T1. Then with a 55-200mm in my bag I'm generally catered for - I don't use the 55-200mm very often so for most of my shots I don't need to change lenses which I don't like to do too much whilst travelling (for reasons of dust etc). I cannot fault the 10-24mm and 18-55mm lenses and they are way sharper than my previous Canon 7D system. I can fit the 2 bodies with fitted lenses, plus the 55-200mm and another 35mm f1.4 into a Domke Next Generation Herald bag. It also takes a 12" Macbook or iPad. 
​Hope this helps! 

I'm lucky enough to own two lens kits a prime setup (14, 35 & 56) and zoom setup (16-55 & 50-140). My personal experiences when travelling are essentially as follows...
 
When travelling with my wife and being touristy the 16-55mm is perfect. Yes it's a bit heavy, but the IQ is great and the range means I don't need to take any other lenses or worry about changing lenses. It's WR sealed too which is a bonus. I used this virtually exclusively (little bit of 50-140mm but we'll get to that) on a trip to San Fran and Yosemite and another trip to Amsterdam. The 50-140mm, whilst it's a great lens i find it a bit heavy and normally lives in a hotel safe and is used for specific locations, often for shooting Panos.
 
When I've got more time and have time to shoot on my own, the light prime set up in a Billingham bag works great. I used this set up in Rome and recently in Morocco and didn't miss the zooms to much, apart from when taking a tour in Marrakesh which meant I was limited on lens change opportunities and therefore lost some shots.
 
The one lens I'm tempted to get, which would really add to a travel kit i think is the 90mm f2. I've used it a bit and really enjoyed it and as a stand in for the 50-140mm would be great for travel. I think a 16-55mm & 90mm would be a super versatile travel kit for everything apart from treks. For treks, you'd want to throw in the 50-140mm instead in my opinion, and maybe the 100-400mm if it's wildlife images you're after.

Of all my Fuji lenses this is my favourite to shoot with, because it's just so damned fun.
 
Not the sharpest, not the lightest, not the fastest, not even the most useful (for me), but gosh is it FUN.

You can make it work with aperture, but many people want to keep the limited DoF.  You can't do that without ND filters in very bright light.

At some point in the future I want to explore the video functionality of my X-T2 as well. I was looking at:
- Feiyu MG gimbal http://www.feiyu-tech.com/products/31/ (around 650-800 euro)
- Sirui video monopod http://www.sirui.eu/en/products/monopods/ps-series/ (around 170-300 euro voor monopod only, 150 euro voor fluid video head)
 
Cheaper option is a steadycam, like the Ringlight Steadycam Stabilizer S40 for 150 euro.

Did some tests in my X-T1 with the 18-55mm F2.8-4 OIS.  Standing still, I can shoot video as on a tripod.  When walking on smooth ground, if I work really hard, I can shoot smooth video.  Sometimes.  Rough ground, there is too much motion.  35mm seems to be the limit where it starts to look really bad.  
 
The worse is the pan, as the OIS seems to allow pan mode and look at just tilt stabilized.  Then the pan stops abruptly and reverse.  Really not good enough.  
 
I'll have to try it with a folded up tripod or monopod for some more mass, but I would have no problems with video from a still position.  Especially with a monopod in the mix.

For the weight cost of a stabilization rig, you could carry the 18-55 OIS.  I haven't rolled video walking with that yet, but may do that at lunch if the weather is good.  

Just weighted mine on a old style kitchen scale; looks like 330gr. - same as the price !