Miyamotoo on 12 January 2018
Well it's fact that full Nintendo Direct in all cases until now are in less than a month after Direct Mini, you can see yourself (link down). I personally expecting normal Direct around March latest, but I want rule out maybe at end of January or in February.
https://en.wikipedia.org/wiki/List_of_Nintendo_Direct_presentations
Also I made thread about that matter
http://gamrconnect.vgchartz.com/thread.php?id=234126&page=1#
