Be able Add agents to the store, like to manage orders and stuff and manage settings

Amazon like, frequently bought together feature at the bottom of a product page.

I think you have forgot to add payment icons in the footer like most ecommerce store has. Visa, MasterCard, American Express etc.

Add a wish list system

Add a gift card system, like they can buy gift cards and use those to get products and such

Having a mobile app to manage the store and see sales figures would be great. Its something that shopify does well and would make it easier for us to see the stores progress.

Who wants the ability to add upsells and downsells POST checkout. This means after someone purchases a product, you can choose to offer them additional products and offers (especially at a discounted rate) after they’ve completed the checkout process without asking them to enter a credit card again or billing details. This feature would be very similar to features of CartHook.com but come included with Launch Cart.

is it possible to add promo videos to products?

To save time and create duplicate listing. This much needed, again it takes too long to edit individual listing.