It's extremely hard to answer a question like that. GM has been really good at keeping their mouths shut on this car.
We can only list possible engines, and even the
number of powerplants is still up in the air. Making it, again, difficult to answer above, below, high, low questions.
Your best bet is to read up on some engine threads here, and take a look at a few stickys that were thrown up in the engines section. Then apply you're newfound knowlege to what you think a Camaro
should be, and formulate your own opinion. If you finish with your head spinning and can't figure out which engine GM is most likely going to use...then you're one of many who feel the same way.