I think Apple will release a portless iphone purely for bragging rights and some will buy it. There is no need to remove the port, but there was no need to remove Audio port and yet it happened. Once BT buds got good enough, it was the excuse to ditch 3.5mm port, and wireless is almost good enough (need wireless portable chargers to exist) to ditch charging port.
Logic can predict it will happen, but not the date. May be next year.
Graphene cells from Samsung will help propel both wireless in smaller phones and USB-PD 60W in larger phones. It has slipped due to Covid-19 but is viable still for 2020.