If you are near wet areas, you should keep seeing fresh signs. If you are, the hogs are still there. They justmay not be using the area at the times you are hunting. Hogs move a lot at night because they are more comfortable then. They don't see all that great, and at night, everything else is in the same boat they are in. And if somebody starts shooting them, they will change the times of day they pass through the area. If that doesn't work, they will search for new areas.
For a while,hogs were using an area I hunted from 6:30 to 9:00AM or so. After I shot a few, I quit seeing them. But the sign was still there. I found out they weren't moving through until 11:30 PM. So I adjusted accordingly. Every time I shot a couple, they would be about 30 minutes to an hour later moving through. About the time they worked back to 7:00 AM shooting time, they left the property. I quit seeing sign, and the bottom wires on my fences stayed up for a while.

It has been a couple of weeks, but I told the guy next to me where to set some traps, and he's trapped some and shot some.