What are the new special infected in Left 4 Dead 2

From the last one there is still the Boomer, Smoker, Hunter, Tank, and Witch but there also new ones like the Charger, hes like a tank but not as strong, he has one strong arm and slams you into the ground, the Spitter which is sorta like the Boomer except its a girl and doesn't blow up when you shoot it, and instead of vommit she throws up acid which spreads across the floor like a molotov, then there is the Jockey which is like a mobile hunter that jumps on your back and steers you towards anything dangerous, there is the Wandering Witch which is a regular Witch but walks around so you have to stay on your toes, there is also and unconfirmed special infected called the Spiker which when shot shoots spikes out of his back in all directions.