I just hope this gets the ball rolling for DC movies. It's about time.
I think Wonder Woman, and then Aquaman, got the ball rolling, as both of those were good movies that did well at the box office as well as critically.
Aquaman is my favorite DC movie since the Christopher Nolan Batman trilogy.
I hope Flash is a good movie, I really like the character.
The planned new Batman movie sounds promising, it is set back in time compared to the Justice League movie, and Batman is not being played by Ben Afleck, as he is much younger. From the description I have read, they will focus on Batman's detective skills, which sounds great because that aspect has been largely overlooked in previous films, but is a core aspect of Batman. He is the ultimate detective (and strategist), and even started in a comic book called Detective Comics (80 years ago!)
I do not know how they will interconnect future films like another Justice League, I guess we will have to just ignore Batman being a different actor, like how in the Marvel movies they switched actors for the Hulk and War Machine.