I absolutely cannot wait for October this autumn when the new Generation of Pokemon is released!
This new Generation of Pokemon will be great...
But here are a few ideas on how the new games could be fun and enjoyable:
The three starter Pokemon need awesome-looking evolutions;
Fennekin doesn't become a Fire / Fighting type, it would be old and repetitive;
The three starter Pokemon's third evolution's secondary types are Psychic, Dark and Fighting (They counter each other Psychic<Dark<Fighting<Psychic - although Dark is immune to Psychic so this wouldn't be the best idea...);
The legendary mascots aren't Dragon types like the last two generations (Dialga and Palkia didn't LOOK like Dragons...);
We see new pre-evolutions and new evolutions of old Pokemon;
There aren't too many new Pokemon with complicated names and designs (Alomomola anyone?), some new Pokemon with retro designs would be nice;
The new Pokemon aren't based off of food (Vanilluxe) or real-life objects (Garbodor), or if they are, please hope they aren't too silly looking or are powerful and fun to use;
James Turner doesn't design any Pokemon! (I kid of course, I'm sure if he were to design new Pokemon, they would new ecsentric and good, but many hold him responsible for the less well designed Pokemon of Gen 5 - Vanillite, Vanillish, Vanilluxe, Vullaby, Mandibuzz. Although he did design Gollet and Golurk!);
There is a huge post story (New Islands, Pokemon, Battle Frontier, Legendary Pokemon, Puzzles like the Generation 3 Regi's Puzzle, Re-challenge GYM's, Harder Elite 4, World Tornament, Battle Subway etc...)
AND MAYBE
Walk with Pokemon (I know it wans't in the trailer, but it did say "Game footage not final", so you never know. It could be a toggle on/off feature that helps you bond with your Pokemon - help them evolve quicker!);
Have muiltiple regions (It would be nice to visit a full 3D Unova or another past/new region as a post-game challenge)
BUT MOST IMPORTANTLY...
NO ZUBAT OR TENTACRUEL (Or there Gen 5/6 equivalent) :D Only Joking ;)
Hope you like my ideas. I did like the Ice-Cream Trio, Trubbish or Garbodor and Vullaby or Mandibuzz, I was just joining in with their mocking as a joke and I think that the starter's don't look good for this new generation. I will be choosing Fennekin however because I love fire types!