Bethesda Game Studios has taken to Twitter to tease something Fallout-related - we just don't know quite what that is right now.

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The developer's tweet uses one of the "Please Stand By" test cards used across the series (although this appears to be a brand new version of them), as you can see below:Predictably, speculation is rife - one emerging theory is, with this October being the 10th anniversary of Fallout 3, a remaster or remake is on the way.Bethesda has form here - it previously remastered another of its modern-classic RPGs, Skyrim, releasing a Special Edition, Nintendo Switch port, and VR version.While it seems an inevitability that we'll receive a Fallout 5 eventually, Bethesda has recently alternated between its two major franchises, meaning Elder Scrolls 6 is far more likely to come next in terms of brand new games. We also know Elder Scrolls 6 is already in development It's also possible that this is a spin-off in the vein of Fallout Shelter. Bethesda is working on a "bleeding-edge AAA freemium game" a mobile title (which may or may not be the same thing), and at least three other projects It's not clear when the studio will follow up on this tease, but you can be all but sure that we'll know more by the end of Bethesda's 2018 E3 conference on Sunday, June 10

Joe Skrebels is IGN's UK News Editor, and he wants Fallout Melter, an art app in which you sculpt ghouls' poor faces with nuclear paint brushes. Follow him on Twitter