What should be added to woocommerce related products feature for higher conversion?

WooCommerce groups upsells, cross-sells, and products having the same tags or categories as 3 types of its Related Products design:

• Up-sells are products that you recommend instead of the currently viewed product.
• Cross-sells are products that you promote in the cart, based on the current product.
• Related Products is a section on some templates that pulls products from your store that share the same tags or categories as the current product.

They similarly display on the site as a product slider section on the bottom of the page, differentiated by the section title. Please note that you can manually define upsell and cross-sell items, but the related products are automatically sorted.

But, consider if a few tweaks below are added….

• Upsells and cross-sells are offered in popup form instead of static form : they will be more interactive and motivating to talk customers into spontaneous buying

• Offer discount if customers purchase upsell & cross-sell items : customers will be willing to spend more if they can buy regular items at discount price

• The ability to cross-sell in value combo by bundling products into package/kit that are sold at a total discount.
• Segmentize related products into different types of personalized recommendation: best seller, recently viewed, featured products, recommendations based on cart, etc.

...how your upsell, cross-sell, and product recommendations can be improved?