A simple single and fast port for data transfer should not be that difficult for Apple. Should not require Einstein to come up with this. Many other smartphone manufacturers have had it for quite a few years now
You could theoretically have Lightning supporting up to 5Gbps. As with Previous iPad. But unlikely to happen.
Seems like it might go this way..I would not be suspried if rumours will go rampant in the next few months for a port-less iPhone.
It makes no sense as USB 2.0 is not meant for fast charging. Hence, if the iPhone 8 has fast charging, then it has to be 3.0.
FYI, USB 3.0 was built to power SATA devices, a higher power requirement, hence the fast charge capabilities.