Don't as me why, but I have more faith in LEGO to give us something entertaining.
Some of the voice talent involved:
Mark Hamill (The Trickster, Sinstro)
Troy Baker (Batman)
Nolan North (Superman)
Josh Keaton (Green Lantern)
Khary Payton (Cyborg)
James Arnold Taylor (The Flash)
Grey Griffin [DeLisle] (Wonder Woman, Lois Lane).
John DiMaggio (Lex Luthor, Joker)
Kevin Michael Richardson (Captain Cold, Gorilla Grodd, Black Manta)
Tom Kenny (Penguin)
Cree Summer (Cheetah)
Tony Todd (Darkseid)
Dee Bradley Baker (Martian Manhunter, Man-Bat)
That that's a cast.
I know exactly why I have more faith in Lego than in DC: Lego understands fun.