I would love to upgrade my 7+ 128gb to the new X, but they offering only 64gb and 256gb, no middle ground, that to me is just an insult, 128 was the sweet spot for me, also I am not sold on first gen face ID, I will wait for the following year to see if there are any real improvements, maybe higher refresh rate and more responsive multitasking.
Wireless charging is not a must for me, I use heavy cases so most of the times that wouldn't work.