User blog comment:The Rim of the Sky/Bethesda to Publish Physical Lore based books on the Elder Scrolls series/@comment-205.235.33.2-20141023121313/@comment-4984687-20141023152211

It hasn't been confirmed but they will likely make it, considering ESO is just a spin-off. ESO is also a Zenimax Online project, so it won't interfere much with Bethesda's work. Considering Fallout and TES alternate between releases, we will likely see Fallout 4 before TES VI.