In this particular case, Lakenheath is served with a few trains per day at weekends to enable bird-watchers to visit the nearby Lakenheath Fen RSPB reserve, and similarly Buckenham on the Wherry Lines between Norwich and Lowestoft is served by 4 trains per day roughly every 2 hours on Sundays and 1 return train each way on Saturdays for the RSPB reserve at Strumpshaw Fen. Both stations are virtually in the middle of nowhere so arguably don't need a weekday service anyway.
Sadly, Buckenham Station is no longer useful to much of the area, as there is pretty much no cross-river road link to the local villages a relatively short distance away on the South side of the Yare, which used to be accessible by ferry a long time ago. Ideally, a new bridge or ferry crossing could be built, but it's really a case of proving demand, getting planning permission, and also funding something that ambitious. Oddly enough, I don't think sourcing small areas of land for the footprint of something like that would be a major challenge - there are lanes either side, one of which would need fencing and widening, and the other which would need a slight re-siting and widening. Villages to the North of the river such as Brundall, Acle, Lingwood, Cantley & Reedham already support their own stations, and Buckenham itself is very rural, with barely as much as a hamlet nearby.
However, with a crossing, the station could easily have a connecting bus to all sorts of little areas which are nowhere near well-served today, and negate the need for the current (though minimal) quantities of buses or - most importantly - fairly high numbers of cars to bother heading further towards Norwich. In other words, it could be a rail head for Loddon, Chedgrave, Thurton, Bramerton and Rockland, which are all grossly underserved by public transport just due to the position of said River Yare! And naturally this would not just apply to links to Norwich, but probably also elsewhere in the county and beyond.
I have posted on this matter previously & may speak to a few local residents about it in more detail at some point, but it's far-fetched to currently imagine it ever really getting off the ground (literally, in the case of a bridge

).