As
@The Planner says, there is no chance that freight can contribute to this route.
Firstly, there’s not actually that much rail freight across the Pennines, nor a huge untapped market that could readily transfer to rail. And what there is (existing or potential) would not necessarily be routed that’s way anyway.
Secondly, there is the rather sticky issue of Leeds. Any freight that was routed that way would either have to go through Leeds station, or across the southern / western approaches at 25mph. See what happens at Manchester Picadilly for the reasons why this wouldn’t be a good idea.