Evux's suggestion would be interesting to see, especially the themed parkour for each profession. To expand on that, what if there were different types of rewards that could help speed up the cooking, brewing, or growing times of the items that are currently being used in the respective profession hub?
Maybe finishing a professions parkour can subtract a few minutes from what's currently cooking, brewing, or growing? So it wouldn't be a physical item that the player gets, but just a message that the timer on the player's current item has been reduced by X Minutes. It could probably trim 20% off of the initial time that each item starts off with.