I would suspect the pricing to be similar to the current Echo Hatch, Avtoller just bought one, he should know pricing. The Civic SI might not get the best of fuel mileage being 197hp though 
My guess is that the pricing will be slightly higher than current, but packages and standard equipment has been juggled, so it's hard to say for certain. I did order mine as Wing said, but the pricing is still not out. It is the car I want, so I'm not to worried about the exact cost.
From everything I've read, the Kia Rio is a pretty awful car, with poor drive characteristics and at best, doubtful reliability. I would think VERY carefully before buying one. The initial purchase price is low, but as Consumer Reports said about the Rio: "The Rio is one of the lowest-priced cars sold in the U.S. Expect to get what you pay for. It's based on the dreadful Ford Aspire, ..."

Of course, they were talking about the 2005.