"...Once I find a film maker, be that director or writer, my job then becomes to believe in their ideas, champion their ideas, and bring their ideas to fruition..." I am encouraged by this from #JeremyLatcham because #Superman is definitely the type of movie his Granny would like (This Ma certainly does believe in uplifting and true-hearted heroes with redeeming qualities such as Superman).
I don't get the impression he would nix villians or even profanity if either one contributes realism to the overall story but there may be less of a focus on over the top evil and cursing every other word (and no, I am not speaking about any specific filmmaker when I say that, not James or anyone else. It's a general trend, the more outrageous the better.) That shift may not artistically be a bad thing because it may open space to explore different facets of good vs bad. Gray really makes black and white interesting.
So the question remains whether he will "find" James Gunn and his vision as valuable as all of us. If he does put his support behind Superman 3, it sounds like we can expect 100% support for the vision of #JamesGunn and that's a lot better than having someone come in who wants to insert their own vision instead of championing the vision of the filmmaker.