TOKYO — Behind the scenes, Honda is now putting the finishing touches to its eagerly awaited next-generation 2012 Civic Hybrid, a car that's being set up to challenge the Toyota Prius. The automaker is remaking the entire Civic lineup but prioritizing the hybrid model over the conventionally powered Civic, to the extent that the future of the "normal" Civic looks doubtful in Japan while the 2012 Civic Hybrid will definitely go on sale here next year.