Racing 'fanatic' Queen Elizabeth has Royal Ascot in her sights
The 95-year-old sovereign has several runners during the five-day meeting, beginning with King's Lynn in Tuesday's King's Stand Stakes.
Racegoers are being welcomed back to Royal Ascot for the first time since the coronavirus pandemic began, with 12,000 spectators a day permitted at the course, west of London.
"So, it's a shame to miss an event.
"The plan at the moment is to see how it goes towards the latter part of the week and if the queen's able to come because she's got runners, then, fingers crossed, it will happen."
"It's a deep fascination, a very broad escapism for all the other things that the queen has to deal with in her life," added Warren.
The monarch, who is the nation's longest-reigning sovereign, lost her husband, the Duke of Edinburgh, in April.
The royal family has also experienced a turbulent time after Prince Harry and Meghan Markle gave a bombshell interview with US talk show host Oprah Winfrey earlier this year, during which they said racism had played a part in their decision to quit Britain.