No, I don't think so.
Diesel residuals are supported by their low pence per mile running costs. As X30XE says, nothing proposed so far does anything to change that. The current approach is more softly softly than that, but I think will see diesel slowly disappear without the need for anything costly like a 2 tier diesel duty system. You can't just hike diesel fuel duty in the short term as this has the potential to cripple a road-based economy such as ours.
60% of cars bought are company cars and the gov't is attacking these by way of a tax surcharge, both on the car and company fuel. So this will reduce numbers in the future. Old diesels are. Being banned from town centres and (I would imagine) will shortly be subject to some kind of scrap page scheme.
10yrs from now, I don't see many new diesel cars being sold. But I don't see residuals dipping in the short or medium term.