No, because I hope there's going to be some sort of mechanic for haggling. Which might mean going to different shops to get prices for different items.
In fact we know it's going to be in the game that prices will differ between towns, and that if the arrow maker dies then arrows will become a rare commodity in that town.
So there's no way I'd want to "Sell All Junk" because I'm fully intending to shop around! No point selling spare arrows, gems, and swords in one shop when you might get a better price for the sword at a different shop in a different town. Since there's going to be a dynamic economy, it would be daft for the devs to put in a feature that discourages you from noticing it!
ETA: I do though want to be able to use shift+LMB or similar to sell all of a stack of items at once though without any dialogue boxes asking me how many, that's fairly basic.