If you've been using Icon Plus through your employer and you are leaving your employer, you can still maintain your Icon account.
You will switch to using Icon One, instead of Icon Plus. Everything remains the same, the difference is that you'll set up your savings contributions to come from your own bank account, we will link your accounts.
You can do this right away, or you can wait until you're ready. Either way, your account stays with you, not your employer.