I do not know if Poloniex can return to occupy a relevant place in the market in the near future, because unfortunately Binance has become a dominant monster that seems to devour everything, and a lot of good quality exchanges have appeared that seem to offer better features than Poloniex, however, I believe that one of the great advantages that will allow it to continue gaining customers is that it has been able to survive over the years, adapting successfully to the constant demands of the market, which I believe has made it a mature and reliable exchange, worthy to recover some of its previous leadership.