ZeniMax vice president Pete Hines has appealed to Fallout fans not to expect information regarding a fourth installment any time soon.
In an interview with Polygon, Hines emphasised that Bethesda Game Studios has no interest in "spinning out" annual franchises, and that making assumptions about what the studio is working on is not a good idea.
"What people need to understand - whether it is Bethesda Game Studiso, Arkane or anybody - expecting information like that in any short period of time after they moved off one project to the other is really unrealistic," he said.
"We are not into annual franchises - just trying to spin out a version of our game year, after year, after year - like, we have never done that, I don't see that it is something that we are doing anytime soon."
Hines went on to say that Zenimax prefers to allow its studios to take their time conceptualising new titles. "Todd [Howard, from Bethesda Game Studios] will let me know when he is ready and I will tell everyone else what he is up to."
Hines' comments come after promises in April that Bethesda Softworks will make "more noise" in 2013 than they did in 2012. Since, the company has announced The Evil Within and Wolfenstein: The New Order.
The Elder Scrolls Online will release later this year for PlayStation 4 and PC.