I've got a feeling this generation will be revolutionary, introduce several new types and expand upon Pokemon's online capabilities. My idea for a new type:
Light
SE against:
Dark
Ghost
NVE Against:
Ice
Light
Electric
Fire
No Effect Against:
Grass
Resistant Against:
Fire
Light
Ghost
Weak Against:
Dark
Poison
Attacking with a Light-type move is difficult, as many resist Light. Nevertheless, Defense is where Light "shines". Having only two weaknesses, both of which are uncommon attacking types, defensively built Light-types will stay around long after the start of a battle. Although attacking with Light is unreliable and begging for a switch-in, Light moves knock bulky Ghost and Dark types (Dusknoir, Rotom 2, Umbreon, etc.) down a notch and give Sableye/Spiritomb a dire weakness.
New status: Irradiation [RAD]
Like Poison-type, Fire-type, and Electric-type moves, each Light-type move comes with a x% chance of Irradiation. Irradiation:
-Halves the Special Attack of afflicted Pokemon
-Does 12% damage each turn
EDIT: I gave Light a Poison weakness to buff a type that desperately wants a reason to be used offensively
Light
SE against:
Dark
Ghost
NVE Against:
Ice
Light
Electric
Fire
No Effect Against:
Grass
Resistant Against:
Fire
Light
Ghost
Weak Against:
Dark
Poison
Attacking with a Light-type move is difficult, as many resist Light. Nevertheless, Defense is where Light "shines". Having only two weaknesses, both of which are uncommon attacking types, defensively built Light-types will stay around long after the start of a battle. Although attacking with Light is unreliable and begging for a switch-in, Light moves knock bulky Ghost and Dark types (Dusknoir, Rotom 2, Umbreon, etc.) down a notch and give Sableye/Spiritomb a dire weakness.
New status: Irradiation [RAD]
Like Poison-type, Fire-type, and Electric-type moves, each Light-type move comes with a x% chance of Irradiation. Irradiation:
-Halves the Special Attack of afflicted Pokemon
-Does 12% damage each turn
EDIT: I gave Light a Poison weakness to buff a type that desperately wants a reason to be used offensively