Board Thread:Game Discussion/@comment-38184237-20190319234120/@comment-32545704-20190320011757

Flashbacks are due to return in the next update so it's possible, maybe towards the end of the year as the original event was only in September. No one knows for sure, but trying to second guess the monkeys is a favoured pastime on here.

Alternatively, there may be an LTS before any flashback as with several cars recently (MP4/4, MP4-X, Superfast, etc.). Personally I wouldn't buy in the sale, I'd wait for one of the above. For me, the real value is in the upgrade sales if you already own the car.

You can check this page to see which flashbacks might be due for an appearance:

RR3 Wiki:Possible Flashback Special Events