I think it is an interesting angle.
My only concern is that it might be a bit confusing to see WW in the modern era in BM vs SM in 2016, her origin story set in the 1920's in 2017 (in her own movie), and then, a few months later in 2017, in the modern era once more in Justice League.
I'm just amazed that we are even talking about this. I mean, can you really believe it? Wonder Woman is finally coming to the big screen! I just hope she is done well.