You are wrong to say it's "not possible." You're not in a position to say what is truly "possible" in regard to Wizards/Hasbro. And nothing new happens in this world unless someone voices it, and does it.
Back in 2015, I posted a proposal that Wizards open up the setting IP (Forgotten Realms, etc.) for fan commercial works. I even went to the trouble of cheekily posting an "imaginary news" site which purported to show new logos for the fan commercial content program
. (I didn't hold onto the ruse beyond the original post; it was only an evocative image to get people thinking.)
I was nearly universally mocked by the ENWorld community: "You're wishing for a pony!" "It will NEVER happen!" "It's impossible: Wizards will never open up their setting IP! And here's a big list of reasons why it's impossible!"
And the thread was shut down.
And soon after that, DMs Guild began.
It's not like any ENWorlder came back and apologized to me, or said: "Ya know, you were right after all."
I'm not saying the proximity of the two events was anything more than coincidence. What I am saying is that I quickly tire of persons whose sole contribution is to say "it'll never happen", "it's impossible."