You're too much,
@Nadalfan2013 .
As for the article, none of the Next Gen are likely to be as dominant as Fedalkovic, but that doesn't mean they won't eventually steal away the crown. At some point it is inevitable. But it really is a gradual process, starting with a drip, then a stream, then a flow. Shifts in dominance are sometimes sudden ("floodwaters"), sometimes more gradual. This seems more gradual.
You can see this as more and more players of younger generations start filling out the top 20. Fully 12 players (60%) of the YE top 20 were born in 1989 or later; this up from 7 in both 2016 and 2017 (35%), 6 in 2015 (30%), 3 in 2014 (15%), two in 2013 (10%) and just one in 2012 (5%). Now of course of those 12 of 20 in 2018, only 1 (Zverev) was in the top 5 and two more (Thiem and Nishikori) in the top 10, but that will change.
But by "dominance" I take it you mostly mean Slams. But again, things change gradually and from below. Whether that dominance will be broken in 2019 is unknown. In 2017 you had the first players born in the 90s win big titles - Zverev (b. 1997), but also Sock (1992) and Dimitrov (1991). In 2018 Zverev won two more, and Khachanov (b. 1996) was added to the mix. This year I suspect, at the very least, we'll see more new Masters winners, the main candidates being Kyrgios, Coric, Medvedev, and Tsitsipas, in my opinion. Maybe Nishikori finally wins won (I hope - otherwise he'll go down as the best player of the Open Era never to win a big title).
But Slams? That will be harder, but I could see one of Wimbledon or US Open going to a younger player. We shall see. By 2020 the flood-gates will be fully open.