It's not going to happen, it'll be between Labour and the Lib Dems. There are Conservative voters on Merseyside of course, but nowhere near enough for the suggestions of new lines for each district to be more than just an idea.
In his (don't know the candidate's name) defence though, there's every chance 'new' could have been taken a bit more literally than it was intended. I can't see many, if any, new lines in the Liverpool City Region any time soon, but I think there will be some large investment in rail infrastructure over the next five or ten years. I do hope some funding is diverted towards a larger Merseyrail fleet though, that is going to be key if any new lines are going to be realised.
For the record, I am a floating voter and haven't decided who to vote for yet.