Jaguar/land Rover seem to be continuing to invest in diesels so I imagine they will not be happy if life gets too hard for diesels.
I can't help feeling there is a lot of hysteria in the move against diesels. One has to consider more than just the emissions problem of the vehicle. In general terms one must consider that the modern diesels are often smaller (lower manufacturing cost and associated cost of transport, raw materials, processing etc. all of which contribute to pollution)for a given real world performance (low to mid range torque), consume less fuel (less refinery and transport costs and emissions), now longer throw out fine carbon particles (due to filters) and are generally pretty clean with efficient catalytic converters and AddBlue.
I'm also not convinced that all the real costs of electric an hybrid vehicles have been considered.