Despite missed sales expectations and a five-year-low user share, research firm Gartner is predicting that iOS and macOS devices will overtake Windows in terms of devices shipped per-annum.
http://www.notebookcheck.net/User-share-of-Macs-may-have-hit-a-five-year-low-but-Gartner-predicts-future-Apple-domination.190709.0.html