So it used to be that all dramas were OT. Period, that was it.
Then they started incorporating a "modern day" application of the OT drama where actors in the present day reflected on the story.
Then they started using some highly fictionalized NT characters in dramas (never Jesus of course)
In the past few years we've been getting more "modern dramas", just about people in the present dealing with their "problems"
This years DC is different: I think for the first time ever, both stage dramas are set in the future (albeit a WT spin on the future). It is an entirely imagined world, not one that supposedly existed in the past or present, but one they want you to believe will exist in the future.
I saw it as a remarkable propaganda technique: portraying future events to be just as "real" as ones that (supposedly) occurred in the past. I guess after over 100 years of waiting and hoping and promises "right around the corner", the idea behind these dramas is to reify a fading hope that any of these events they claim will happen will actually materialize.