The Hunter's Boost Road was also changed to the MA4R series. In case you are unfamiliar with these quests, they give you a randomized route of the available MA4 stages for the respective episode. Players can also talk to an NPC before starting the stage to select a desired route.
More details about the Easter Event and the Egg Shop can be found in this thread:
Thank you for playing on Ephinea and we hope you enjoy the event!