I'll be traveling to the EU somewhat regularly for business starting in Q3 of this year, and onward for the foreseeable future. My wife's job allows her to work remotely (technically both of our jobs do), so she'll be tagging along on some of those trips, and she's a US citizen only.
Has there been an announcement as to when she can do her ETIAS application, so she can be ready for next year's trips?
You don't need to worry about that just yet. And recent events may somewhat curtail your travel plans, even in Q3.