I never really got bored with the villager, I think The villager shop system keeps things simple, and everyone is used to the villager, so if you change the shop system suddenly, Not all people will like it, and this may lessen the people to egg wars. ( This is just my opinion.....Chill)
Sure, it'd cause confusion for many players, but that would probably clear up in a week or two and become a lot simpler in the long run.