Andrei,
The list of features for 2.6 version looks great.
Any thoughts on this ? - > https://www.nopcommerce.com/boards/t/7475/number-of-ways-in-which-an-order-status-could-be-completed.aspx
Just like Upsell products, I guess addition of checkbox in the relation product would be great addition so that customer don't have to go to specific product page and they can add the relation product right from the list below the product.
Few suggestion(s):
1) I guess an addition of a Label saying "Price" or "List Price" would be great before the price amount on the product page, because right now, it just shows the amount. Like if we see this: http://demo.nopcommerce.com/p/26/etnies-mens-digit-sneaker (It should say: Price: $17.56 - instead of just $17.56). This way it will make more sense.
2) Seems like a lot of nop user are concern about the domain.com redirection to www.domain.com. Would be great to have this setting in the official release.