Rumor has it that there will be a cameo by Marvel Superhero "DAREDEVIL". Kevin Smith wrote some of the best DD stories in DD's 40+ year history. Smith is also interested in making a full out DD movie. Hopefully it will go over better than the new Superman movie that he was supposed to do with Nick Cage. I was so looking forward to that one too.
I know he is gonna do the prequel to FLETCH and i think Jason Lee is gonna play FLETCH. I also think he is gonna do a movie based on the comic The Green Lantern.
Also as far as this being the last film to have Jay and Silent Bob or NJ in it. I think he will make more cause his films make alot of money now and are very popular. I hope its not the last i like all the characters.