PrimoPyro,
I am not aware of a Wacker oxidation that used anything other than Palladium. But I have seen "Wacker type" oxidations of olefins that used Pd0, like Pd(PPh3)4 and Hydrogen Peroxide or Oxone.
You have to understand the catalyis cycle. There are three main steps, and in a wacker oxidation they are Oxidative addition of the alkene to the metal, transmetalation where an -OH attachted to the metal center is coupled with the alkene, and reductive elimination where you lose the ketone and a water and end up with Pd0. This is then re-oxidized by CuIICl2. At two points during the catalysis cycle where you add a -OH or H2O to the metal, you lose a molecule of HCl, which in turn re-oxdises the Cu0.
The addition and elimination are the rate determining steps. Pd0 usually forms 4 coordinate complexes, and PdII 5 coordinate. If that is you were to attach a bridged diphosphine ligand, that would narrow the cone angle and favor the reductive elimination step. This could be accomplished by first making PdIICl2(MeCN)2. You would deprotonate Acetonitrile with LDA, and react it with PdIICl2. Then add 1/2 eq. of your diphosphine to get your four coordinate PalladiumII diphosphino dichloride. You can play with the cone angles by using different phosphines.
Oxidations can are done with other metals of course. My recommendation is to get a good book on Organometallic catalysts in organic synthesis, and find access to a database like CAS Scifinder or Beilstein Crossfire.