"LONDON (AP) — Thousands of people gathered outside Buckingham Palace for a star-studded concert where two future monarchs will pay tribute to Queen Elizabeth II on Saturday, the third day of a Platinum Jubilee extravaganza marking her 70 years on the throne. Prince Charles and Prince William, the queen’s son and grandson, are to address a live audience of 22,000 and millions more watching on television...."
https://apnews.com/article/platinum-jubilee-june-4-live-updates-c0979f665a8dedde608236b0bedb2a2d
We don't know how long Queen Elizabeth, Prince Charles, or Prince William will live or who will predecease whom, but AP tells us that Princes Charles and William are "two future monarchs," or, as the AP headline phrases it, "two future kings." Really? Not "possible future monarchs" or "potential future kings" or "princes in line for the throne"? AP's headline a few years ago -- before Meghan Markle's husband was stripped of his royal highness status -- might have referred to Charles, William, and Harry as "three future kings." But we now know that ain't gonna happen.
Maybe AP's next trick will be to tell its readers the names of "two future presidents" of the United States. .