Would be highly suspicious if anyone other than The Strokes got comeback of the year. Could maybe argue Bright Eyes, Flaming Lips, or Gorillaz, but the scale of the comeback and the length of time since last great album are way more impressive in the case of The Strokes.
I guess if you’re talking about singles rather than albums Lady Gaga coming out with her first decent song since 2011 and it being a stonker is also pretty impressive.