Yes! With the new Traveling Mailbox Membership Subscription ($12 per year), you can keep your account open without an active Mailbox Subscription. This way you can start and stop your mailbox subscription as needed. Your mailbox number and address remains and a new USPS Form 1583 is not required when you resume traveling.
You can subscribe to a membership here: https://travelingmailbox.com/product/traveling-mailbox-membership