A Nintendo Direct will be Live tomorrow or today, depending on your location. It will show at 3PM PST and 6PM EST US times. If you live in the UK, it will likely premier at midnight. However, there should also be a Europe version.
Moving on to the main point of this. Nintendo Direct will mainly talk about ARMS and Splatoon 2, but mostly ARMS. Maybe we will see a few surprises or E3 sneek peeks. (Don’t expect too much.)
I will make a follow up after the Direct sometime.