Change of email address in peer-review system
It depends on how much time the editor is spending on the journal. When an invitation email bounces, the editor will receive an email. It's good practice then to cancel the invitation, because otherwise one could easily mislead oneself that the reviewer might still accept. If the bounce email includes a redirect, then it's a simple matter of changing the reviewer's email and inviting again. But doing this for reviewer after reviewer (an editor can conceivably have a couple of papers a day to handle, each of which needs 5+ invitations) gets tedious quickly. The editor might get tired, in which case a sufficiently motivated publisher can still pick up the ball ... but no guarantees. In your case the redirect will only work for a year, which might not suffice since the editor might be inviting based on your papers published over a year ago.
The easiest way to update your email is to log on to the system yourself and update your information. If you can't do this, emailing the publisher (the journal's full-time staff) is the next-best way.