correct. They will share the tower. That is very common especially in larger markets.
with them moving the station east it is possible. But unknown yet (havent seen any coverage map for the new location).
The main reason KVHP was built where it is was to serve both Beaumont and Lake Charles. Then they (KVHP's owner) created KUIL-LP for Beaumont (channel 64) mainly for local programming and Cowboys games (picked it up via free to air).
Wonder if Nexstar might get irritated IF it does really trounce into Lafayette proper (therefore giving competition to their FOX station). Right now it doesnt
http://rabbitears.info/contour.php?appid=1291036&map=Y
But they could complain to the FCC possibly....
But with the transmitter getting moved that far east it is possible it would. But would they use the same power as they currently use (which is 1 million watts) or drop it down as they would cover Lake Charles better.