No Nightwing
Dan Jurgens wanted to use Nightwing as a lynchpin for his team, acting as mentor for a new group of kids, but was not allowed to use him in the series on a regular basis.
Wildcat as Mentor?
From a 1996 article - From Wizard #60: "Jurgens doesn't discount guest appearances by established DC characters during the first year's worth of Titans tales, Aside from the veteran hero Wildcat, who becomes the Titans' mentor, expect appearances by Robin, as well as Nightwing, who pops up "just to give the new guys his blessing," says Jurgens."
