What we do know comes from the bloodlines. The sire Sogann and a dam by Major Cadeaux suggest a horse built for speed over shorter trips, though how much of that genetic promise has translated into the real thing remains to be seen. Breeding can point you in the right direction; it cannot guarantee anything once the stalls open.
The trainer is Scott Dixon, operating out of Rolleston in Nottinghamshire. Dixon's yard has sent out 35 winners already this season, which tells you this is a stable in form and firing. When a yard is running hot like that, even a first-time-out runner carries a little extra credibility — the horses coming out of that yard right now are fit, ready, and finding their way into the winner's enclosure on a regular basis. That context matters. Beautiful Rumour may be an unknown quantity, but the team behind the horse is absolutely not.
Beyond that, the honest answer is we are simply waiting to find out. A debut run often tells you more than a whole page of historical data ever could.