If true, and I see no reason why it wouldn't be as that is something not worth making up, it would be nice to get some news on the sequel. 
Hopefully that the script is turned in and it's been given the green light. Especially if it's an overall studio related announcement I would imagine they want the positive news.
Just thinking about what they have right now they could show the Supergirl costume/green lantern one, peacemaker related stuff, potentially announce the Clayface director, maybe news on waller and Sgt rock. Batman sequel news would be the biggest news, unless it's related to brave and the bold.