Glad someone besides myself enjoys this kind of detail!  It also turns out that adding these thrusters isn't terribly difficult.  However, it would be very taxing on the engine graphically.  In that video I have a thruster cone modelled and clone on about 14 places on the ship.  So that is a lot more 'model'.  If I were to put those on NPC ships it could be very costly framerate wise.  However, with proper LOD's it might work.  At least as an Addon it would be optional.  Those with slower systems can just not install it.

Now the question remains:  Which ships would have maneuvering thrusters over gas jets?