Why not Jerry Lynn? We've not even seen how he performs in TNA. I think they could do a RVD vs someone match, but the opponent no-shows and Lynn comes out, once he's recovered from his back injury. Depends how long it's gonna take for him to recover.
People like Justin Credible and Nova are young enough that they'll be able to lose the weight, and get in decent shape. Sandman, Chair Swinging Freaks and the others are a wee bit too old for it. In the Sandman's case, it's more to do with the amount of beer he'll be drinking that will do it.
I wouldn't keep CW and I would assume that there's a reason why Nova did properly get involved. 3D would be one I'd get rid of, but like Sting, they are too invested in the company and their merch sales will be good, positives outweighing the negatives etc.
I think Raven could do a job for Abyss, although Mitchell is amazing at the Sinister Minister.
Yeah to the rest of them, they should roll out of the Impact zone and next year have Bound For Glory in London. I'd probably convince one or two people to come down to London to see it, or any other PPV. Knockout's Tag belts do nothing for me. Heyman, yes. Styles, yes. A second show count work aswell.
I'd also look to improving the X-division, get Chris Daniels back in. Use Amazing Red more. Homicide, is he injured? Get Max Moon Konnan to be his manager if/when he comes back.