Well, PLD isn't likely to hit 90 points, but his winger Kevin Fiala might. So far he has fit in quite well. The biggest asset being that he can just bulldoze and will his way past defenders and make something happen on net at any moment. That is something the Kings haven't had in a long time, maybe since Jason Allison. I think he is going to fit in well for quite a while and he only just turned 25.
As for Vilardi, I will say that the injury he received was kind of a fluke BS injury that would have happened to anyone in his position. Overall, the Kings were hoping he'd turn into a producer like PLD but with more skill as he has silky mitts but doesn't use his similar size the same way. He has all the tools to do it and knows how to use them. He is mostly beyond the chronic things he had in the past, but he does have and warrant a little bit the injury-prone moniker. In the end though, he should have a successful and productive career as when he is on the ice there is no mistake that he belongs as a top 6 forward. Hoping he stays healthy enough to realize and become the player he is meant to be.