I don't have any friend playing DayZ on consoles, so I don't care at all about crossplay. Actually it's like the last last thing to be added. Better have bows and a finished game before ?
And even if there's some crossplay added, someone already said that consoles and PC DayZ are different versions.
Even if it was the same version ; do you really want to be forced to play with a keyboard (and then a mouse) on a console to be able to properly play ? I doubt there's enough buttons on a console to make it fair for consoles. Maybe by using one or two "combo" buttons to make more controls... But it would be a pain. Or maybe I'm interfering with ArmA x)
I won't talk about performances as consoles seem to be more and more powerful.
TBH I think this game shouldn't have been made on consoles before a true beta version, with all features and a global rework to make it compatible between consoles and PC.