I checked NCN11, Ely to Barway today:
Nope, they haven't changed the limbo gate:
There is about a mile of the 'comedy off road', as in this photo on this section of NCN11 (the landowner wouldn't let Sustrans tarmac it).
The tarmaced section is also getting narrower, but should be wide enough for trikes:
There are also 4 cattle grids:
...but they also have a gate to bypass them.