As many have wondered and asked, "Will the new SimCity be moddable?" Answer? YES!
Ocean Quigley told the audience. "We've designed all this stuff to be moddable. We know modding is hugely important to our community. We know the reason why people are still playing SimCity 4 ten years later is because the modding community has kept it alive. GlassBox is built to be moddable, but beyond that we haven't announced anything"