A new article in the Wall Street Journal has lent further weight to speculation that Apple will jump on the triple-rear-camera bandwagon this year. According to the report, this feature will be found in the most premium model the company will release this year. It may be accompanied by two additional SKUs with dual rear cameras.
https://www.notebookcheck.net/WSJ-report-corroborates-theory-of-triple-camera-iPhones-in-2019.393826.0.html