Will you be able to download ps4 games and play them on the ps3?

I have a ps3 but i really want the new Kingdom Hearts game which comes out next year. It will be available on the ps4 and xbox 1. Could i download it from the ps store and play it on my ps3? I don't want to buy a whole new console just to play one game, but i do really really want to play this game.
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