No, he is in films II and V. He's already appeared twice and is certainly likely to appear again, barring that they don't stop the series....again!
Also, the TV Series may start up again. It can go before or perhaps even after film XIV, which we don't know when that takes place yet. They put the TV series after 13 even though the TV Series had started developing and stuff before 13 came out. They can do the same with 14 and hence find a way to keep Chomper and Ruby out of movie 14.
Ignoring the TV Series now would be a dumb move (not to mention piss off all the Chomper and Ruby fans.) .
Also, I was mentioning what you think should be done before they finish the last Land Before Time movie and close the series, not what they should do in film 14 (Oh I really hope that one isn't the last one! ) .
Poor Chomper though. Most people sing "The Sun Will Come Out Tomorrow", yet, he probably is worried about "sky puffies" in his future.
Chomper might sing "Let It Go" someday.
