Been investigating this, this weekend.
Lots of Planning resources here from Cornwall Council. Approved last Spring.
https://planning.cornwall.gov.uk/online-applications/applicationDetails.do?activeTab=documents&keyVal=Q5W2DDFGL2M00Highlights,
1. Lift on down platform side to have additional entrance from the new
P&R▸ car park.
2. Temporary Bridge whilst construction in progress at extreme eastern end of the Station.
3. Considerable discourse on finish to new structure in the planning process.
4. Old Bridge to be used in Somerset, presumably on the Minehead line.