Do you know if Mario Kart 8 deluxe will have free dlc of pack 1 and 2 if people bought the dlc for the wii u version.?

I think the game will come with the DLC from the Wii U version, in addition to the new characters and a few additional tracks.

You won't have to re-buy the Wii U DLC.

I would also expect it to have its own DLC later.