Short answer: No.
Long answer: Economically, yes. MS and Sony will attempt motion controllers at least to the beginning of the development cycle of their next consoles, and if and when they prove to not make up the ground the Wii made on them in the first few years of this generation, they shall hopefully take this not as a rejection of their getting late to the game but acknowledge that it means the Wii's success was due more to price point and casual-gamer-friendliness than to any particular desire the public had for motion controls and/or Nintendo's finger on the pulse discerning it.
In the very long term, motion controls will go the way of the Virtual Boy, except for some very limited use (I really, really like "turn the controller, car goes left/turn the controller, car goes right" as an option on all future console controllers).