I would have made it very complex so that viewers have to figure out what heck is going on. I think that's part of what keeps a person's attention in a drama series. The key is character development, which TNT ignored for constantly shifting characters so not only did you not feel development happen, you had no idea who they were and what to expect. Then in a drama, legal, medical, political and even business it's this attention to detail, even it if goes over the audiences head, that seems to get people to take it serious.
My take for going into 2012:
JR has retired to his yacht having mastered Texas oil:
1) Ewing Oil: having "stolen" it from Bobby and Sue Ellen (bad idea to ignore the movies in my opinion) in the unseen years. Ewing Oil is a private oil exploration company, the world's largest pureplay, private oil company.
2) The Trident Corporation, JR is the largest stock holder after several mergers what has become of West Star, he manages to hold control the giant corporation. He splits the company like ConocoPhillips making Trident only refineries and gas stations and Ewing Oil acquiring it's oil fields.
3) Lone Start Investments, JR's private holding company of a multitude of businesses from banking to construction, field services, mercenary, and several cattle companies, etc,
There should still be CyberByte, a public tech company.
There should be Barnes Global, a private conglomerate which includes Wentworth Tool and die controlled by the trusts of Pam, Katherine and Cliff.
There should be the Ewing Farlow Foundation Miss Ellie and Clayton set up for almost all of their money and the land of South Fork to protect it. Bobby would have the South Fork Cattle Company (as established in the original series) but the land would be the basis of the foundation. Then we'd find out about the mineral rights trust held by the foundation - up for grabs to drill on South Fork.
note: I have started the show with Miss Ellie's death and John Ross finding out she left him the South Fork House so he can grown close to Bobby and take an interest in the cattle, and Sue Ellen and move in to help raise his son, John Ross IV, unknown mother. I'd have had Callie's son move in to South Fork at John Ross's request and Christopher there because of Bobby (thus everyone but JR who's the puppet master on his ship).
I'd add Ryland Logistics, a public company controlled by the Ryland Family through their Class B shares (much like Ford Motor Company).
JR wants: South Fork's oil, Ryland Logistics and Barnes Global to put together with his assets to create Ewing Industries to leave to his sons.
This would have given us private companies, public companies, special classes of stock, foundations, trust funds, and all the complexities (and the Ewing's all living at South Fork). Add JR's money hidden in pockets all over the world and his political network involving itself in Texas and D.C. politics. The fight would be between Callie's son and Christopher with John Ross in the middle trying to keep his family together. Then I'd bring on J. Paul Wendell, Jeremey's son or grandson.
Just some ideas.