I believe there is still the intention to link the busway to the station, not sure how. Will be interesting to see on Saturday if the have completed the other end to Rowner Road. You carry on past the old Fort Brockhurst station. The converted Gosport station, to flats, is very nice far better than the bombed out mess I remember as a kid.
My normal route is Fareham, the busway then follow the old Stokes Bay line down to the coast and have my bite by the Gosport lifeboat station and view the shipping. I then cycle to Gosport passing
https://en.wikipedia.org/wiki/Fort_Monckton, otherwise known as No.1 Military Training Establishment (1956-present). Ferry to Gosport, Old Portsmouth, Southsea, Eastney, Hayling Ferry, the old Hayling Billy line and Havant station for return journey via Guildford.