By itself, that wouldn't be so bad. Despite our insistance to avoid adding characters just to add them... we've certainly done it a few times. But the question becomes, what do we do with him? In the comics, he winds up being killed by his own father when he becomes evil in Titans Hunt, a story I must have blocked from my memory because when I went back and read it again... just... wow. We're not doing that one, and really, we're not doing any stories with him. Do we... just completely repackage him and use him somewhere else?
At some point... you just have to realize that the character doesn't have a role to play. We like Jericho... but ultimately even in the comics, he just never had a reason to be there.