No one is going to be "restoring the Snyder verse" simply because it hasn't gone anywhere. Aquamemoa is still there, as is Gal's WW and Miller's Flash (for now). Now this can all change if they decide to reboot everything with Flashpoint but with the movie being pushed back to next year, no one really knows what's gonna happen and if all those reports about early screenings are remotely legit then they're possibly using them to guage audience reactions that might help them to move forward
Now, generally when some people are shouting "restore the Snyderverse" they mean give Snyder 400 million dollars (atleast) so he can finish JL2 and 3 and that is.....well, VERY unlikely.
Snyder's DC work has been a commercial and a critical disappointment no matter how hard his fanbase tries to indicate otherwise and Discovery isn't here to waste massive amounts of money on failed projects, they're here to clean up house.
Warners has been run to the ground in the last 15 yrs of so, they're gone from being the no.1 studio to being no.3 (Disney and even Universal hold bigger market shares) and Discovery buying out Warners is totally Bizarro world because the opposite should be true, any day and everyday.
Discovery has become a real force, powerful enough to buy out major studios because it's been run like a fine clock and you can all bet that there will be major changes afoot, to DC, HBO, CW etc....and if things don't bring in the cash and the acclaim then they won't be made, so Snyder's movies that don't bring the necessary cash and acclaim (MOS, BvS) or subscribers (JL the never ending cut) won't get any support, neither will projects like BOP and the suicide squad that were infact acclaimed but flopped hard at the box office.
I do imagine that Superman may benefit from this shakeup because Zaslev put Supes at the top of his list of important properties when he first spoke about the merger more than a year ago, so expect to see more Superman in the near future, especially when they will realize that the company is going to lose exclusive rights to the characer in 2033 and it's time to milk the cow for all it's worth.