Kusama is now operating at 500 validators slots. 130 validators are waiting to be included and the total stake percentage is 60,83% - as scheduled. If Referendum 76 is not paused in the near future, there will be an increase of 2 validator slots per era for the next 283 eras.
Find here a full report of the scheduled task and its effects on network metrics, and some overall recommendations.
It is advisable to monitor the amount of validators waiting to validate, as the number of validators slots increases.