ESA's ExoMars will arrive in 12 days - in two parts; Schiaparelli will detach from TGO in 9 days and head for the planet while the orbiter will swing into orbit.
The media campaign for ExoMars is nowhere as big as for Rosetta; there's no blog on ESA's site, but at least twitter feeds for
the mission,
the orbiter and
the lander. Detail info website
here.
Intended landing area for Schiaparelli is in Meridiani Planum very close to the current location of NASA's Opportunity rover, within a few km. It's considered highly unlikely that Opportunity will spot Schiaparelli's descent though.
Schiaparelli is an experimental platform mostly intended to test Mars re-entry and landing as a demonstrator. While it carries a scientific payload, it is battery-powered and only planned to perform for 2-8 sol after landing, likely under 4 sol. The science payload is called DREAMS and will perform studies on Martian dust storms as well as their possible relation to local electric fields. Despite its function as a demonstrator, Schiaparelli carries a camera (flight spare from Herschel) that will take 15 photos during descent.
After the batteries run out Schiaparelli will still serve a function as a static retroreflector target for geodetic analysis and possibly in the future as a target for laser communications tests and LIDAR atmospheric analysis; it's the first such retroreflector on Mars, on the Moon similar systems were placed in the Apollo missions and by the Lunokhod rovers.
TGO, the orbiter, is the main mission of ExoMars 2016 and will analyze the Martian atmosphere. It also carries an observation camera that will take stereoscopic colour images. Part of the mission is to map out where certain trace gasses in the atmosphere - known to exist - are generated for analysis of potential biological or chemical causes. TGO has a planned mission time of one Martian year (687 earth days) beginning after it swings into its lower 400 km circular orbit by early 2017. Beyond that it will also serve as a communications relay for future missions.
The mission will be supported communications-wise by Mars Express, since it will be better positioned for monitoring Schiaparelli's landing.