Dark Continent is still just a rumor. We've never seen it in real time, only read about it in flashbacks.
So the question should be: can Togashi sensei write "Dark Continent" well enough to live up to the readers' expectations?
If you want to know my opinion, New World got a less hype, and Mr. Oda failed to write it to readers expectations.
Togashi is different, but he's been sleeping on an endless hiatus since 2012. Also, his writing style makes exploring the Dark Continent something that can only happen at the end of the manga.
Don't forget that after the Voyage arc and reaching the first destination, we'll need to travel even further. And I don't think that's going to happen.
I believe that the journey to the Dark Continent will be shown as the final decision of a certain character, presumably Kurapika, as the conclusion of the entire Voyage arc. Then the whole saga(?) will be interrupted and we will see a time skip. But of course, for that Togashi-sensei needs to release more than 150 chapters.