Pokémon Gold/Silver

It is said that this game will have over 300 monsters, and each having their own gender which means there would be a girl and a boy Pokémon! New Tricks and New Abilities!  Brand-new Pokemon will learn brand-new tricks.  It is said that over 200 tricks are there, and there also will be brand-new abilities.  The screen images of battle are much improved.  Also, the monsters will be more realistic, as they will be diurnal and nocturnal, meaning you'd actually have to wait for them to wake up at a certain time of day for them to fight.  You can check Pokemon's pre-evolved status! For  example, you can see the Clefable's former data when it was Clefairy in Red or Blue Versions. And some Pokemon may  evolve in Gold and Silver even if they were thought to have  been at their final evolution or Red and Blue Versions.
 

Since the Pokémon can be nocturnal or diurnal, means the game will have a clock, or timer, to keep track of this.  Also, Nintendo may be planning for the game to be in Color.  You can use the skateboard as a new traffic facility! In addition to bicycle by which you could move comfortably in Red and Blue Versions, you can use the skateboard to move fast and may be able to go unexpected place in Gold and Silver Version.
 

Also, there's a new version of Pikachu in the game.  He is a nicely plump, BLUE Pikachu-looking creature, who is called Mariru, meaning Marine Blue.  His American name is Pikablu.  As said before, he will be plump, and that means he's plumper than Pikachu. He's made his appearence in the movie "Pikachu no Natsuyasumi" too.  Also, the Pokedex will be upgraded and have some new functions.
 

Because the Pokémon in this new game would have a specific gender, Pokemon bears a child!  All Pokemon that appear in Gold and Silver are classified into male and female, just as the case of Nidoran in Red and Blue.  Pokemon can be crossbred and make a baby by laying 'Poke-Egg' if they are same species.

The main problem? The older versions of PokéMon, PokéMon Red, Green, Blue, and Pikachu will NOT be able to READ the data of the new monsters of Gold and Silver but Pokémon Red, Green, Blue and Pikachu would be able to SEND their monster data to the new version.
 

The graphics seem good and expect the game play to be even better.  The planned release of this game would probably be around April '99 in Japan.  The American release date would probably be around the same time.