Well, we will see. The main reason why Merseyrail services have not been extended to Preston has been the cost of electrification, whether it be 3rd rail or overhead. Battery operation is a game changer. There are more than 200,000 people living in the south of Sefton who could benefit from a cross platform interchange at Sandhills to get to Preston rather than go all the way into Liverpool. The time saving could be as much as 30 minutes. Then there is the enormous growth of population in Burscough to take into account.There is no business case to extend Merseyrail services to Preston. That is why it has been an ambition for 40-50 years and absolutely nothing has happened. Just because a battery train can theoretically reach Preston doesn't make the proposal any more sensible or realistic than it was in the 70s or 80s when the idea was first proposed.
Each of the routes mentioned is to be examined to determine costs and benefits of extension of existing Merseyrail services. If we are to work towards the elimination of diesel powered trains this is the sensible course of action.