ok, here is what i think:
*when the heroes first came across petey, he was an undead dire rat. im guessing that nailo wins the fight, but resurrects him or some crap like that.
*knowing rob, roamin probably is alive. he uses condescending lies like that to keep people tuned in. i wasnt born yesterday,
*they are back in time. if you recall from episode 7, aka Chicken Salad Sandwich, roamin and gaary got into an arguement about time travel. gaary used a refference from terminator, where as the coversation was progressing, he kept losing his clothes...
*the potion of everlasting life is gonna come back to bite rob in the ass. he is probably going to get into, like, some stupid star wars cliche battle for destiny of master versus apprentice. when rob tries to kill timmy, (i mean... Douglas,) he wont die, because he was given the gift of immortality. this also relates to the battle between maelstrom and the dragon warrior. maelstrom revealed that he hated immortality because he could "never become stronger, and must live a life of weakness."