Type Of Game Option

Wouldn't it be cool if you can play minecraft like if it was a new game well this idea is for that.

How? Well what if minecraft had a button before you make your world so that you pick the type of game you want to play example:

Normal mode were you play minecraft how it is right now

or

rpg that changes the name and look of things and adds magic, classes, levels or even make it so you can make a gathering wand to get wood that uses mana

Why this is a good idea

1. People will have different things to play within minecraft.

2.can be sold as a dlc

3.if they make this in the future different game types can be made easier

4. There can be different things added to different game modes and it will be easier to update since it's an unrealistic type of game mode

5.we can get more servers with different types of game like a 1v1 with magic or archery or a necromancer

How I think this can be added You know how we have flat world well it will be the same thing as that but it will be a copy of the survival mode  but in a different Option  that changes the type of things that generates the world and what you can craft