TNA has tremendous televsion support from a network that has proven it can be a successful partner for a similar product, and they have rich ownership with a willingness to spend money to the point of running in the red. These are the two main factors that sunk ECW -- a lack of strong enough TV partners, and cash.
Heyman has stated that he would not push anyone over 40 (that includes RVD). He has kept up with the business, and knows who the young stars are (both in TNA and elsewhere). He also stated that he wouldnt do another "reset", and would slowly kill current storylines while using the older talent to put over the younger talent.
He clearly has a plan, it's just a matter if the Carter's are willing to can Russo (who Dixie loves), aand give Heyman the part ownership he has demanded. Heyman made stars out of talentless hacks out of the likes of Sandman & Johnny Grunge, I shudder to think what he can do with people like Samoa Joe, Nigel McGuinness, Matt Morgan, Kazarian, Styles, Machine Guns, etc. Yeah, i'll even throw Homicide in there, even though I hate him.