Pokequaza said:
And it didn't appear for 4 generations
Ghost/Flying didn't appear for four generations, either! Don't say "it took this long and they still didn't do it so it probably won't happen," you never know what could come in the next generation!
I would definitely like to see a pure Flying type, but I'm not sure it'll happen. Flying seems to be more of a sub-type than a main type. I believe that it's not that they haven't thought of a pure Flying-type, it just wouldn't make sense to create one.
I'm all for new evolutions for old Pokemon, but here's a list of non-legendary basics that should never evolve because doing so would completely ruin the Pokemon, turning them from cool designs to horrible disfigured monster from the fiery pits of the underworld (see Lickilicky for more details):
Hitmoneverything
Kangaskhan
Mr. Mime
Tauros
Jynx
Aerodactyl
Snorlax
Sudowoodo
Wobbuffet
Girafarig
Qwilfish
Shuckle
Mantine
Skarmory
Miltank
Sableye & Mawile
Volbeat & Illumise
Zangoose & Seviper
Lunatone & Solrock
Kecleon
Chimecho
Tropius
Absol
And everything from the 4th generation.
Here's a list of Pokemon that could obviously benefit from evolution but will never see one because they're gimmick Pokemon and not meant to evolve so stop asking for evolutions for them:
Unown
Delibird
Smeargle
Plusle
Minun
Spinda
Castform
Luvdisc
And finally, a list of not necessarily Basic Pokemon that I think could benefit from an evolution, mainly because they're already ugly as is and they couldn't get much worse with an evolution. And who knows, they might end up looking cooler after evolving (see Roserade for more details).
Farfetch'd (Him before anyone else)
Ledian
Corsola
Porygon2
NO EVOLVING ANYTHING FROM GEN 4. That's a rule.
Regarding new types: Maybe one more, but it would have to have a Dragon resist. Light type makes the most sense.
Regarding designs: I don't really care as long as they don't end up looking like Lickilicky (who has the stupidest name ever, by the way).