I honestly expect them to use the current choco feeds, possibly in addition to new ones. I could see the DPS food increasing acceleration, the healing power food increasing stamina, the enmity food increasing max speed, and the exp food increasing the racing chocos experience, if any. And, Krakka for training montages and Thav Onions for passing a certain experience cap. I also expect the choco dying food to still be used to dying racing chocobo feathers.

They could totally introduce new food, but I just don't see the point. We have three foods for three stats (healing, DPS, enmity), and I'm expecting racing chocos to also have three stats like they did in VII (stamina, acceleration, top speed). Mapping them just makes sense to me.

I guess we'll find out in four days!