Ive had a Fuji Xe2 for some time and im still enjoying it very much, one thing about Fuji is their Firmware updates are insanely good, it has completetly changed the camera from what it was when i first got it, Fuji colors are amazing, the bad thing in your case is having to buy a new line of lenses, and they are not on the cheap side, some are afordable but not cheap, i almost always use the 35mm 1.4 absolutely love this lens and it has a good price, the 18-55mm is a no brainer if you get it with the camera as you will have it for cheap and its not your normal kit lens, this thing is quality, not very fast, but quality and the IS for video is great. i also own the 10-24 great lens but only use it for real estate photography at the moment, but it would work great for video as it has IS, i have the 60mm but i really dont recommend it the AF is bad, very sharp but not worth it IMO, the new 23mm F2 feels like it would be great too.
As for your lens choices the 16-55 2.8 would be the perfect all round lens IF it had IS, and the 50-140mm is on the expensive side and i really dont see so much uses for it, unless you really need the long range, for portraits the 56mm is just beautiiful, for video/stills i would go for 18-55mm for IS handheld, and a 35mm or 23mm to get started.
hope this helps.