https://woocommerce.com/products/woocommerce-bookings/

Currently, the entire server is brought down when trying to permanently delete any workflow which has run 1,000+ times. Kindly fix this issue.

Trigger a workflow after a previous workflow runs

Trigger: coupon about to expire within X hours/days Would be great to trigger some last minute sales + this would make an awesome follow up.

https://wordpress.org/plugins/woocommerce-pdf-invoices-packing-slips/

Addition of a new trigger Customer added a new saved payment method (credit card)

Add ability to send recommended products to a customer via the recommendations from the customer. Extension: https://woocommerce.com/products/recommendation-engine/

To consider: How will this work for campaigns? Probably each campaign could be synced with a different list.

Woocommerce does not have a solid logistical system to track orders. Hence, it would be nice to simply mail the customer asking them if they received the order or not. If they press "Yes" the order is marked Delivered in the backend. If no, they are redirected to customer support. Likewise, other campaigns can be built based on logic.