When will terrorism supplant healthcare as the most talked-about national issue?

Over the last few years, a great deal of national attention has been focused on healthcare and Patient Protection and Affordable Care Act. The Democrats originally campaigned to make healthcare — and a national program to cover the uninsured — a key political issue. The Republicans then used the periodic unpopularity of the PPACA and issues related to it as a key point to reclaim the Senate in 2014.
While there is a lot that can be changed in healthcare, of course, and while it impacts a great portion of the economy on a national and individual level, I wonder as follows: Will the great majority of Americans get bored with the issue? Will discussions by Republicans and Democrats resonate less and less with the public?
A recent Gallup poll identified the social issues generating public concern throughout the past year. The results were interesting. Complaints about government leadership — including President Barack Obama, the Republicans in Congress and general political conflict — led the list; 18 percent of Americans identified them as American’s most important problem. Ten percent named healthcare, making it fourth on the list.
And yet terrorism was third-to-last.