The Compass/Patriot replacement (Originally rumored to keep the Patriot name and styling, but, now that the Compass is outselling the Patriot after the redesign, it could go either way now) is currently slated for MY2013. Meaning we should start seeing prototypes soon and be able to buy them around September this year.
It, like the Compass and Patriot being based off the Caliber, will be based off the C-Wide platform that currently underpins the upcoming Dart, and will probably share roughly the same engine choices-your choice of a 1.4L turbocharged Fiat 4-cylinder (Same as in the 500 Abarth, good for ~160 HP), and 2.0L and 2.4L versions of the new Tigershark engine (updated version of the current World Engine that the Patriot/Compass currently use), which should come in around ~185 HP and ~220 HP, respectively (May be a little more, possibly as much as ~200/~240).
Transmission choices will, assuming they keep the same as the Dart, a 6-speed manual, a 6-speed dual-clutch automatic and a 9-speed automatic.
The replacement will be available in a Trail Rates version, and, from what people who have seen the early platform mules say, ground clearance and approach and departure angles are better than either the current Compass or Patriot.
Pricing should be roughly the same, but expect MPGs combined in the high 20s/low 30s.