In sum, if Sony are making a Demon Soul remake, they not gonna open new serevrs for it on PS5 especially with the meagre install base at launch
??? Demon's Souls PS3 had dedicated servers for that game when Sony expected it to flop hard out of the gate. Like "not even bothering to release it in the west" flopping hard. Demon's Souls PS5 will sell quite well in comparison. There's no reason to believe that it would not, given that the branding of the Souls games is far stronger and Demons would actually have a marketing budget this time.
It's also possible Sony could retool the online to work around P2P, as Dark Souls did and not have to worry about maintaining dedicated servers.
first, second, their remasters didn't include online to start with (except TLOU).
Online is critical to demon's souls functioning as a game. You can't launch the title without it. And "those remasters didn't have online except for that one that outsold all of the rest of them" isn't quite the argument you think it is.
Second, like what you said Demon Soul may have been a way to push more PS3 units to get sold but now it won't be the case especially that it will be remake of an older and known game, this won't move PS5 units
This is crazy talk. First off as discussed- "Demon's Souls" is older but it is not a "known" game as much of the PS4 userbase never played the game. The PS4 will conservatively outsell the PS3 by somewhere around 50 million units, and the gap in the west where these games are most popular will be larger than in the east. The audience for the PS5 is expected to be equal or greater than that of the PS4. This is a very, very big potential audience that might be interested in the game.
Second, Souls games sell quite well, and there is no reason to believe that Bloodborne would move units but this one woudn't. There is almost always a serious dearth of quality software for platforms at launch- and the reimagining is a way to rectify this. It's an expansive game with high brand recognition that takes comparatively little investment from a budget perspective.
but on the contrary, if any remake of this game that has to be done, then it should look for an already established platform with great isntall base to sell itself and not the opposite. That is why a remake of this game on PS4 would have been more logical and wiser instead than on PS5.
This would be incorrect, since the PS4 has already sold as many units to the hardcore base (who are the ones most invested in souls games) as its going to. From here on out its moving consoles to the casual audience and to bargain hunters, which is where the PS2 was at this point in its lifespan after crossing 100m units. Of the 155 million units the PS2 sold, 55 million of those were sold after the PS3 launched and the PS2 only had budget software and ports on shelves.
That's not the audience that's going to be brought in by a Souls game. Demon's Souls WOULD be a good candidate to get the hardcore who might be inclined to wait a few months to grab one at launch, however.
Players by the launch of PS5 will moslty look for AAA sequels , new games and not a remake of 2 previous generations.
The Last of Us PS4 remaster outselling the PS3 version of the game roundly disproves this.