For those lamenting the kick to Vertigo, I'd point you toward Image, which has been kicking absolute butt lately in terms of quality output and, from what I've read and heard, offers far more freedom and returns to creators. The more Image prospers, the more creators go there for their non-superhero titles over Vertigo.
Vertigo should do just fine without Constantine and Vertigo can always invent a new character similar to Constantine if needed.
I do prefer Constantine in the dcu where he started in Swamp Thing. I was around pre-coie and fondly remember the pre-coie Constantine.
The current dcu is very similar to the pre-coie dcu with characters like Swamp Thing, Constantine, and also a multiverse.
We just need a better name for Justice League Dark and more adult takes on the other superheroes such as the currently silly Superman.
Buying a PG-13 Constantine comic and calling yourself a fan of John Constantine would be like buying a Green Day album and calling yourself a fan of Punk Rock. All it'll do is let the real fans know you're a poser.
I expected this a while ago when they married him off.
Mario Di Giacomo