Yes, no one site can take the place of bitcointalk forum as no one will be able to gather so many users. Previously Cryptotalk forum tried to gain traffic by monetizing every post but that model failed too.
There are many site that has tried to function as bitcointalk forum but couldn't make it and they have low traffic, even as that bitcointalk has remained the number one forum that convey more information about bitcoin with highest volume of visitor everyday by days. Even those site who tried to copy bitcointalk failed and fall out of competition.