I like your ideas, Rove! The writers and producers had the chance to do just that after Bobby's death, but blew it big time! The storylines in the dream season were overall boring (with Ray/Donna being the exception). Thus, it would have been better to have ended Dallas sooner, IMO!
On this point I'll politely disagree. Bobby's death should have been the catalyst for the ultimate show down between the Ewing and Barnes family with particular interest on JR and Pam. From the moment Bobby came home to Southfork with "that Barnes woman" this is what Dallas had been leading to. I have no interest in Larry suggesting there was room only for one JR. Dallas was bigger than him. Scenes between JR and Pam were leading to the final blow out of Dallas. There was the scene of Pam storming the Ewing building and threatening JR because of his involvement in having her looking for Mark. Another one was JR patiently waiting in his car when Cliff was arrested for the attempted murder of Bobby. The look on Pam's face as JR drove away was priceless. Another great scene between the two was when Pam confronted JR outside Ewing offices and again threatened JR. His reaction was one of, "Crap, I think I've pissed that Barnes woman off one too many times."
Upon the reading of Bobby's Will everything was set in motion. We've witnessed Pam going from strength, to potentially throwing herself off a building, to a strong and independent wealthy woman, with the assistance of a dead mother and husband. Placing her in the dungeon that was the Ewing Office is exactly what I had been hoping for. Was I going to miss Bobby? Absolutely! But just like Jock's death Bobby could have had a lasting effect on the story.
Now sit back and watch the thrilling ride of JR vs. Pam. Everyone would have been caught in the cross-hairs, Miss Ellie, Clayton, Sue Ellen, Ray, Donna, Cliff and the Cartel. I wanted drama. I wanted a thrill ride that would have left you breathless. I wanted Pam to bitch-slap JR, both physically and in business.
I'd suggest two more seasons after "Swan Song" could easily have appeased our appetite...then end it. Finish the show before someone else brings down that curtain. Dallas could easily have become a classic, entering folklore, instead of the "I'm stuck in quicksand" mess it became.
Glad I got that off my chest.