I'd also love to see Charles Shaughnessy back for good (Shane Donnovan). Team him up with Rafe and these two can be private investigators, while working at the new club. But I mean : real investigators with real storylines. Not a farce of a duo like Carrie and Rafe were during their brief stunt. And while he's here, Shane could send both his daughters (though I would have trouble imagining he's really Eve's father, considering the actors only have a six years difference) to a remote corner to set them straight, or better yet, send them back to California.
I can already imagine wonderful storylines if Steve, Shane, Jack and Bo were back. These are all male characters I would love to see back on screen.
As for the females :
Bring back the real Jennifer Rose Horton, as a reporter. Let her work together with Nicole. Now that would be great. And they could work in collaboration with Hope, as their official Salem PD source.
And if Jack is back, Jennifer and him should be over. Jack and Nicole though could be so wonderful together.
If only...