The much-anticipated cameos came, and respects were properly paid.  The scheduled demise of the character appropriately trailed the unscheduled death of the actor.  Now comes yet another new chapter of the saga, as the plot of present-day “Dallas” charges full speed ahead in his memory.  J.R. Ewing may be as dead and gone as Larry Hagman in body, but even from beyond it appears he’s steering the course for his family.  Thankfully his “work” is living on, at least through the remainder of season two!  I for one am looking forward to the grand revelation of J.R.’s so-called “masterpiece,” pieces of which any “Dallas” nostalgist might be able to predict.