Breaking News: Pokemon Black and White...2?

Although I haven't gotten around to reviewing Pokémon Black and White versions for the Nintendo DS yet (heck, I haven't even bought it yet), I've seen enough and heard enough about it to agree with other reviews that these additions to the Pokémon series are one of the best ever released. Many new features and tons of new Pokémon nabbed it a place in the favorites among the series.
 

Japanese Teaser Artwork

 
A Japanese official Pokémon TV program (probably similar to "Nintendo Week" on the Wii) entitled Pokémon Smash has announced that either an enhanced version or a direct sequel to this generation of Pokémon will have a Japanese release in June of this year for the Nintendo DS.

Now, those of you familiar with Pokémon are aware of the typical pattern that each generation is released in 3s; 2 versions and then a 3rd version with special content and minor improvements. For example Pokémon Red and Blue versions was followed by Yellow as were Diamond and Pearl succeeded by Platinum). In this case however, it looks as if 2 enhanced versions are going to be delivered entitled "Pokémon Black Version 2" and "Pokémon White Version 2"

Now for the burning questions:

-Will this be released in the United States?
-Will they serve as the "3rd" versions or as direct sequels?
-Why for the DS and not the 3DS when it seems that the DS is on its way out the door AND Black and White's graphics are already rendering psudo-3D graphics on a 3D screen?
-Will we see new Pokémon to add to our already overflowing list of 648 Pokémon?
-Will we ever catch ‘em all?

Further Reading:
http://www.pokemon.com/us/pokemon-video-games/pokemon-black-version-2-and-pokemon-white-version-2/
http://www.joystiq.com/2012/02/25/pokemon-black-and-white-2-announced-hits-japanese-dses-this-jun/
http://en.wikipedia.org/wiki/Pokemon_black#cite_note-105