I don't get why V was considered so bad? I think IV then III were best.
I was just realizing the other day that Rocky's two "sons" in the movie are both dead:
His real son, Sage Stallone (age 36, died 7/2012)
And his "adopted" son Tommy Morrison (age 44, died 9/2013)
Looks like there is a rumored "Rocky 7" called CREED on IMDB:
with Rocky Balboa and Paulie too.