And that's assuming they get the srt engine. A standard challenger will probably get the basic 5.7L hemi engine, and they'll reserve the srt engine for their high performance verison.
w/ 5.7L hemi the challenger will be low to mid 14 sec. car (no faster than my buick)
w/ 6.3L srt engine the challenger will be mid to high 13 sec. car
A LS whatever camaro should be at least as fast as the last LS2 GTO which was a very low 13 sec car, and that's because it's somewhat of a porker at 3800 lbs. I predict the camaro will weigh less, plus GM will probably through in the LS7 or equalivalent for the top of the line camaro. This should allow plenty of room to squash whatever Ford or Mopar can throw at us.