In the coming update, FM said
- Players who have completed the removed series will have the opportunity to play through the new series and earn the new completion rewards.
If this is the same a recompletion (remember that time when tts were reset and players get 1-3 coins for running them again?). Remember that recompletion reduces your profile percent? That means you need to be careful when restoring. Otherwise, you might lose won races, $ and coins because the game will restore the best profile (higher) than your latest save (the latest with recompleted races).
just a heads-up.