The existing (LNWR) Morecambe branch has never been electrified. It has 3 overbridges, one of which also crosses the branch to Heysham, which was electrified.Although the case might not be as good as it could, the fact that it was electrified until as recent as 1966* should mean that the bridge clearances are generally OK, - often the last weapon to spike any efforts to put wires up.
* Although that was the experimental 6.25kV 50Hz installation (and 6.5kV 25Hz since LNWR days), as the conversion from 6.25kV to full 25kV on the GEML Glasgow lines and Manchester approaches, was completed with minimal new civils work other than OLE components.
The station is about 300m from the EPN entrance, the old one was about 150m.The station on the sea front was closed many years ago and the replacement is 400 yards further inland.
The planning application documents include a diagram showing an additional shuttle bus to Lancaster centre, but I can't find any text references.
Carnforth Town Council are suggesting a rail shuttle to Carnforth, which sounds like a non-starter.
I wondered about extending the Morecambe trains to a new station at Bailrigg, for Lancaster University and the proposed garden village.
Or even running direct trains between Windermere and Morecambe.