No, the creation of new long-lived access tokens is now deprecated, and will be retired in the future.
For reference, we don't currently have a plan to disable existing long-lived access tokens though. (If that changes, we will of course announce that ahead of time.) That being the case, you can continue using existing long-lived access token(s) without interruption. Note though that after the change you won't be able to create new long-lived access tokens.