I'm willing to bet those "Platinum" Styles will rely heavily on the new voices in this OS release. Makes sense for them to release the new sounds (similar to SA voices).., then to create additional styles to showcase those new voices.
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.