I don’t think that hybrid technology will help a diesel as much as it does a gasoline engine.
Gasoline engines have a very high idle fuel consumption compared to a comparable diesel, as much as 3 or 4 times as much so shutting off a diesel doesn’t save near as much as shutting of a gas engine does.
There’s still the advantage of energy recovering braking but that can be rendered moot if you get out of the habit of accelerating towards each and every red light.