Things have certainly changed. in the 1970's I took a flight on JAL (my first on a 747) which was routed HRW, CPH, ANC and on to Tokyo. All announcements were made in the laguage of: the departure airport/ the arrival airport and (of course) Japanese. So on the first two legs we were treated to English, Danish and Japanese. I deplaned at Anchorage but I assume that Danish was dropped from then on.
More recently I found the French airlines notable for the non-use of English, (No surprise there then).