Closer to the epicenter, there is the expected rise in sightings. MUFON has collected numerous reports from Texas, including one on January 8 in nearby Comanche, any of which can be read in their database available at the MUFON site. The question will be, whether this spreads further, as flaps in the past have become larger or more sustained waves.
Update (January 18): Linda Moulton Howe interviews a man from Dublin, Texas, near Stephenville, who says he saw a huge UFO twice during the week before the mass sighting, and once after. He told his story after the flap was in the press. You can read the interview (with photos) at Howe's site (though it will go behind a pay-registration wall after a while) or you can listen on Whitley Strieber's radio show "Dreamland".
Update (January 21): Other UFO sightings in Texas being reported because of the Stephenville example.
Update (January 22): Walter Andrus says a UFO was seen over San Antonio on January 8, the night of the Stephensville sightings. Other sightings in Texas still come such as this one. Here's one from January 20.
Source: unexplored-earth.blogspot.com