Well, off the top of my head I'd have to say Airbourne is pretty good evidence rock isn't going anywhere anytime soon. I'll throw in a bit of Flogging Molly for some good measure, though in my area I seem to be the only one who listens to them so I may be the same here, who knows?
If we're also going to include pre-95 bands who have recently released albums recently, I'll say Iron Maiden, AC/DC, Scorpions, and some Rage Against the Machine. Whether you consider any of these bands rock or good for that matter, I don't care, but its evidence enough for me that rock isn't dying out anytime soon.