It would be nice if the Gallardo would have it's unique engine. But we must remember that It is the Lambos main moneymaker, so they will have to produce the engine in larger volume.
This is the price Lambo has to pay so it would even exist. Without it we would loose Murcie and that should be unacceptable. Even Murcies engine has no clear future. Rumour is that they will have to introduce a completely new V12 because this one is at it's max (the upcoming power boast will most likely be due to the added Audi FSi technology). And it will be installed in all the future top models.
What we now must pray for is that they don't introduce the W12 as a replacement (although I don't think it's going to happen) It is a good engine and we would got used to it but it would be a shame.