None of the reigning champion is leaving MotoGP, there will be 4 highly rated newcomers.
Maverick Vinales
Vinales will be the only rookie who will be hopping on a factory bike this 2015 season will be former Moto3 Champion and multiple Moto2 race winner. Vinales will be joining the returning Suzuki Team
Jack Miller
This 20 year old lad is jumping straight from Moto3 where he will be riding an open class Honda for LCR. Skipping Moto2 is one of the highlights many sees how quickly Miller adapts to MotoGP, which raise several doubts the relevance of Moto2.
Eugene Laverty
Crossing over from WSBK, Laverty has won races for three different WSBK manufacturers and a formar title runner-up. He will be racing the new Open Honda, having signed to ride alongside Nicky Hayden at Aspar.
Loriz Baz
21 years old Baz is a former WSBK race winner. Riding along Tom Sykes in 2014. Been in a highly controversial issue with Sykes, blamed to be the reason Sykes lost his title. Baz is joining Forward Yamaha which won the Open class with Aleix Espargaro in 2014