As of now, the communication only concerns the schedule for the EOS dates and EOSM dates. The End-of-Life (EOL) dates will be specified at a later stage.
It will still be possible, after the date of EOSM, to launch instances in the generations concerned, within the limits of the available capacity. As a reminder, no SLAs will be applicable after the date of EOSM.
Upon the date of EOL, a decommissioning of the hardware will begin, and it will no longer be possible to launch instances in the generations concerned.
The schedule is available online in the End-of-Life Policy page.