Like planning a ski trip anywhere in the world, none have a fool proof crystal ball. You could say that in a normal winter in the northern hemisphere by the end of January, one could expect good, but probably not maximum coverage. Some years will be better, others worse. Anyone who can tell you more than that isn't being honest. If I were to pick one place that I'd put the largest bet on for that time of winter, my money would be on Niseko, but that's the wrong continent. 'The Alps' is also a big place. One region's feast might be another's famine... kind of like here in north america.