After a couple of Recent threads with open questions on the work on platform 1 at HOP, I thought it might be useful to get in touch with LOROL. They wrote back today and advised that the following work remains:
LOROL Customer Services wrote:
* Monitoring of platform movement to confirm that earthworks have been successful.
* Construction of a new retaining structure to enable removal of existing sheet piling.
* Repairs to canopy and reinstatement of damaged sections of platform
They've also said that posters will be put up explaining what's happening at the station itself and that they will try to advise when the work ought to be complete. I am fairly impressed at their swift and constructive response.