Here is the image from Valve's project management software JIRA, showing L4D3. Would you play Left 4 Dead 3 on Xbox One? And if so, what would you like for it to do different than the other two games in the series? Well we can keep our fingers crossed...
About Left 4 Dead 2
Exclusively available for Xbox 360 and the PC, L4D2 sets a new benchmark for co-operative action games. The title adds melee combat to enable deeper co-operative gameplay, with items such as a chainsaws, frying pans, axes, baseball bats, and more.
With the AI Director 2.0, L4D's dynamic gameplay is taken to the next level by giving the Director the ability to procedurally change weather effects, world objects, and pathways in addition to tailoring the enemy population, effects, and sounds to match the players' performance. The result is a unique game session custom fitted to provide a satisfying and uniquely challenging experience each time the game is played.
Finally, with new Survivors, boss zombies, weapons, and items, Left 4 Dead 2 offers a much larger game than the original, featuring more co-operative campaigns, more Versus campaigns, new Survival maps, and the new competitive game mode, Scavenge.
To learn more, visit the official Left 4 Dead website.