The A-10 Warthog

A defense website, ironically named War Is Boring, writes about the fate of the primary U.S. Air Force ground attack aircraft, the A-10 Warthog:

In putting the A-10 on the chopping block, the Air Force is assuming it won’t ever fight anything short of a full-scale war against a peer enemy. Do we really believe the era of low-intensity wars has ended?

The A-10 is perfect for a Vietnam/Iraq/Afghanistan battlefield but not "survivable" enough for a war with China or Russia. Based on the experience of the last half-century, which type conflict do you think is more likely?