Add New Page Between cart/checkout and order details

Here’s what I’m attempting to do:

In box functionality for Woocommerce takes someone directly from the checkout (after “Place Order” button is hit), to the Order Details page (that lists all order details).

I’d like to circumvent that and add another page in between that. It would be an upsell page, where someone can either opt in or continue to the details page.

Example:
1. Person presses place order
2. After order is placed, it looks at the products in carts, sees what upsells exist for it (if any), and goes to another page, offering the upsell.
3. If the person says “yes”, it purchases the upsell. If “no” it goes directly to order details.

Now, here’s my issue: I’m unable to pass from that secondary page, back to the actual order details if someone says no.

Has anyone attempted to do something similar that could point me in the right direction?

https://www.ads-software.com/plugins/woocommerce/