The reason I suggested Leeds-Scarborough and York -Sheffield is that I've seen that suggested on some other site, but I can't find it again. Feel free to offer other suggestions.
I think Sheffield is likely because they will want to be heading south, I think it is highly likely that Holme Moss will be included on the second stage, do any of you remember the "Wincanton Classic" which evolved into the "Leeds Classic". The route went from Leeds via several local climbs to a circuit which included Holme Moss and then went very near Sheffield before looping back to Leeds.
There has also been a suggestion that Mirfield/Huddersfield will be included to "honour" Brian Robinson which would also suggest Holme Moss.