We Fix I.T.
I wouldn’t think so, I would like to imagine that they already spent a good amount of time tweaking the sensor before it went in the iPhone 8 and further tweaking the same platform would be mostly wasted time. My guess is they are just using the A13 chip to provide any improvements. That is just a guess though, will probably have to just wait for someone to swap the sensor into an 8 and see if there are any noticeable improvements.
A little surprised the displays are interchangeable, but not too much. Out of desperation we once put an iPhone 7 display on an iPhone 8 (may have been a plus model, can’t remember) and it actually worked just fine, minus the brackets mounting the assembly into the body of the phone being different.