This has been suggested many times for many years but here goes again: A killer feature would be able to race a best past time for a particular course (or even just sprint segment) while being able to see a ghost of the past ride.
This would likely be hugely popular, and I would like to point out that the relatively new rowing platform EXR has managed to do it, albeit in a simple way. The forum won’t allow posting of links, so search for “Train with ghost boats, bots and real rowers - EXR” on Google.
While it is more complicated to implement this the ‘right’ way (not based on average speed but rather based on the moment-to-moment historical speed, there is no technical reason it couldn’t be done, and it would be a hugely fun and useful gamification, especially if it worked for entire routes, not just sprints.
This would instantly make all routes more fun when free riding them. It could even eventually be implemented for TTT teams, which would make THAT more fun.
My prediction: If Zwift doesn’t do this soon, a competitor will.
Would be great to have a ghost that you could toggle on or off for repeated workouts or maybe stared segments, much like Strava live on Garmin or Hammerhead head units for IRL KOM’s
Rouvy has virtual partners where you can pick your previous best or others based on their times or w/kg. Never tried it since their courses are pretty lonely, but if you are just racing against your previous self maybe it doesnt matter…
Lucky guy, the feature can be released at any moment (already present in the game as mentioned in the link posted by Paul Southworth, just waiting to be activated).