I think the Abbotts would have had potential if their younger generation (Billy and Colleen) had not been ruined and if the show had not let Ashley and Jack begin to stagnate. For one thing, they shouldn't have still lived in that house. I had a lot of issues with John Abbott, mostly that I thought he had served little purpose (beyond scolding) as his kids got older, and I can understand why the show was at a loss of what to do with him, but the Gloria story was a big mistake and it's still bizarre to me that anyone felt the way to end the story was with John dead and Gloria as the victim of the evil Abbotts.
At this point I would bring in Keemo, phase Jack further into a supporting role (or write him out altogether), bring Traci back full time, have her adopt a troubled teenage girl, pair Ashley with a younger, dynamic man who is a big contrast to her but who genuinely respects her, write Billy out for at least a year or two, and fix the embarrassing writing for Abby that entails a woman who looks 30 continuing to behave like a very immature teenager.
I would also like the Abbotts to cut ties to the Newmans as much as possible. I would like to see Ashley and Jack, with Ghost John's blessing, destroy Jabot, inside and out, and start all over. The Newman/Abbott stuff is so played out and any scene with Victor mumbling and huffing as Jack purses his lips is about as thrilling as a test pattern.