D&D has always had a wide variety of influences on it from popular culture of its time and the recurring influence of pulp fiction/weird fiction that predates it by decades (and the current view of that stuff at any given time). This is true both for people's home games and for the modules and supplements that TSR/WotC/3rd party companies put out for it.
D&D is (and should be) a "big tent," including a diverse range of possible styles and aesthetics and preferences - and I am not that worried about "what direction it goes" or what it reflects - I can keep playing/running the D&D I want regardless of what the common media influence happens to be at any given point
and I can always find some degree of inspiration from whatever that happens to be, even if generally they don't match my style. Heck, one of the biggest influences on my current game is
The Wire not any particular fantasy setting or genre. Furthermore, ever since Gygax decided to include Tolkienisms in the game, despite Gygax not being that big fan, GMs have made use of inspirational sources even when they would not be what that GM would choose to read/watch when they sat down with free time.
Finally, I want to reiterate my usual position, which is that WotC does not own D&D. D&D exists among the communities that play it. It is good and convenient that we still have a company putting things out and revising rules, etc. . but that is absolutely not a necessary part of continuing the (diverse) tradition(s) of D&D games.
Edit to add: I had to google what DOTA was, because I had no idea.
