Well, despite losing BF, NS won the whole holidays WW for the first time, and by a good margin too. PS4 won the whole year, probably for the last time, but it still has quite a big potential, it will end 2019 as a very big second. In the 4th quarter of this year PS4 should outsell PS1 and Wii lifetime, BTW. Most probably PS5 will launch in 2020Q4, but PS4 will keep on selling for at least another two years after that.
At least for the first two years there won't be a true direct competition between PS5 and NS, as the price difference will be too large to cater for the same potential buyers, so NS could enjoy at least 4 years of domination.