Basics

For this MMO to be as awesome as I dream it of being (When Nintendo finally realizes how much money there is to be made) there are some basic general things I feel it needs to be a good overall MMO.

Platform:

This as its an MMO will be on PC, it can be on consoles but due to less control it may not work as well, though what I have in mind it should be fine. Though cross play from PC to console will probably be a no as people will moan that keyboard and mouse it better or visa versa, so competitive play would be out at least for cross platform. 

Style:

The style should be a fully 3D and set in an open world, good examples of similar detailed worlds and play style are that of Guild Wars 2 or Skyrim. They are essentially two different game types; but the highly detailed and large worlds they offer are amazing for a Pokémon type MMO. 

GW2 is the MMO with the world size and detailed graphics which all current MMOs should aspire to have, where as Skyrim still has a massive world but is completely open to the player, who can go wherever they want, with no level restriction or blockages to entire open areas of the world.

This isn't many basics, mainly because any other "basic" things I want to say here, would only make sense with a lot of explaining, which I really want to do, but not to clog this up, mainly how I see the whole Evolution of the monsters working.