The HD collection has made all the other games relevant again, for those interested in Devil May Cry. But it's been a long time since DMC4, and if they made now a DMC5 continuing the story, a lot of people wouldn't even know/remember Nero.
Moreover, DMC4 left many with a bitter taste, being accused of being half a game, and a full overhaul of the game as a taste of what's to come in DMC5 would be the way to go.
It even fits with Capcom's greedy agenda of releasing Super Turbo Hyper Ultimate versions of any game, so even they could agree it's a good idea.
The damage done by DmC is massive on all fronts, but a revival is possible if they get it right, and start working now. Of course, should this DmC absurdity were to continue, DMC would become a rotten corpse impossible to revive.
DMC4: Complete Edition. Gives you the other half of DMC4 that was supposed to be in but wasn't and solidifying it as arguably the best in the franchise after it. --- This is GameFAQs. People here take great pride in ignoring common sense.