Qi chargers can support 15W of wireless charging, but it's not known whether Apple's iPhone lineup can do the same.
Liang Chen of KeenLab has successfully cracked the iPhone X and demonstrated a functional jailbreak for Apple's latest flagship.
In that update, the phones will accept 7.5-watt charges on Qi charging pads, rather than the current 5 watts.
The one caveat here is that if you only have a 5W charging base, you will have to buy a new one that supports 7.5W if you want to take advantage of the update. Minimal display bezels, OLED display panels and wireless charging have all been in the Android domain for a few generations (or more).
As MacRumors points out, an iPhone X running the iOS 11.2 beta got charged from 46% to 66% by a 7.5W Belkin wireless charger in about 30 minutes. Needless to say this charges their batteries faster and is overall a user-friendly trait that Apple will likely catch up on sometime in the future provided that the hardware inside the all-new trio of 2017 iPhones allows it. Right now, Apple sells two third-party wireless charging pads that are capable of hitting that 7.5-watt charging rate. That requires a compatible smartphone, of course, and not all charging pads are compliant with that maximum rate.