I don't want to disappoint you but yes, Apple is going 4,7" and there is also a probability that they will have a second iPhone, at 5,5"..
Gone are the times where small phones were "in"..It seems that currently, the bigger the better...
I understand the merits of a bigger screen, so I think that there must be a sweet spot for the perfect (or the size with the least compromises) size. I believe that to be around 4,7"..Not because Apple is bringing one iPhone now, but because with my experience with the HTC One M8 that is 5". A slightly smaller phone would fit my pocket much better and would still have a nice screen. I also think that I could use a 4,7" phone one handed..