They could do divine with abilities sort of like what Palkia/Giratina/Dialga do just obviously not as powerful.
But honestly, how it is now is perfect just needs to take competitive play and rework the types and update some older fully evolved pokemons stats.
I wouldnt mind new types. it'll give another type that people may like. Plus it can help with certain things. like an example how steel walls so many types. maybe one of the new ones can be super effective against steel
Im curious to know. the only one i can think of is Light type. Some people say psychic is suppose to be light? but come on. light isnt suppose to lose to dark all the time. i dont really consider psychic as light.
Some people have said Plasma, nuclear. Any other types?
oh and if you can list whatever weakness/resistences or any moves you may have made up! :D
That because Psychic ISNT. The only stupid reason people keep asking for a "Light" type is only because the take the word "Dark" type at face value and not its inherent meaning. Psychic loses to Dark like how someone hardworking(Psychic) might lose to a cheater(which is what Dark types are SUPPOSED to be). However, honour (Fighting) beats cheaters (Darks)
On topic, Sound is probably the best. We have a few families that uses Sound and a Sound ability and gets rid of some many Normals(http://www.youtube.com/watch?v=Jx3QLUQs9Cc&t=40s) --- Action speaks louder than words. But words, when used right, overwhelm any action - Me, 2006 Let's put a smile on that face - The Joker, 2008