Turtwig (The grass starter)
Grotle (2nd evo)
Torterra (3rd evo and a good name)
Chimchar (Fire Starter)
Monferno (2nd evo)
Infernape (3rd Evo)
Piplup (Water Starter)
Prinplup (2nd Evo)
Empoleon (3rd Evo)
Starly (Normal/Flying)
Staravia (2nd Evo)
Staraptor (3rd Evo)
Bidoof (The Beaver)
Bibarel ("2nd Evo)
Kricketot (A horrible bug which is useless imo)
Kricketune (2nd evo)
Shinx (The Electric Dog/Bear/Wolf/thing)
Budew (Pre-evo of Roselia)
Roserade (Evo of Roselia)
Munchlax (Pre-evo of Snorlax)
Mime Jr. (Pre-evo of Mr.Mime
Shieldon (Pearl's Fossil pokemon)
Drifblim (Ghost/Flying)
Weavile (Evo of Sneasel)
Cherrim (Evo of a Cherry thing)
Chatot (My parrot)
Glameow (Cat with Spring Tail (Pearl only))
Purugly (2nd Evo)
Stunky (Skunk (Glameow opposite for Diamond))
Skuntank (2nd Evo)
Happiny (Pre-evo of Chansy)
Bonsly (Pre-evo of Sudowoodo)
Skorupi (1st Stage Scorpion)
Croagunk (1st Stage Frog)
Shellos (The dodgy Slug thing has different colour on Different sides of the map.)
Pachirisu (Pika Clone which I don't think it is.)
Buizel (Sea Otter)
Floatzel (2nd Evo)
Buneary (A Bunny, looks a bit like Spinda but with longer ears.)
Carnivine (Venus Fly Trap)
Electivire (Evo of Electrobuzz)
Mantyke (Pre-evo of Mantine (Tyke is a child, Tine sounds like Teen, I think there will be a evo.)
Lucario (The Legend that never was.)
Dialga (Diamond Box-art legendary)
Palkia (Pearl Box-Art Legendary.
Manaphy (Water Legendary, which can breed. I Also have it's Egg in Ranger to transfer to Di/Pe )
Can't believe I forgot to add this to PUAO board. Also I'm going to update my Diamond Thread in a second.
Magmar Evo called Magmortar
Blue Trio Member called Azelf. (Goes to name changer in Diamond)
And more...
Lumineon (Angel fish pokemon)
Rotom (Electric/Ghost Pokemon)
The complete list.
How it is 100% true or not I don't know half of it was leaked onto Gamefaqs, but anything...here it is
http://www.serebii.net/diamondpearl/newpokes.shtml 