It was stated that Conker's ending would have him commit suicide due to him being depress of Berri death and the predicament he is in but wouldn't do good if they made a sequel.
Then it was also stated that if they did go with a sequel it would POSSIBLY be more focus on the whole Tediz and SHC and would have Conker dead in the first scene(it was there first thought of the sequel then they came up with the whole you escape from jail Thing).
http://everything.explained.at/Conker_the_Squirrel/
http://rare.wikia.com/wiki/Conker_the_Squirrel#Trivia
http://www.imdb.com/title/tt0279742/trivia
http://conker.wikia.com/wiki/Conker's_Ba...Day#Trivia
EDIT: I couldn't find the source where Chris talks bout him committing suicide,so it would be great that you guys help out.
Fun Thoery:
The Whole Conker dies at the begining Sequel might be a mocking at the Sequel of Goldeneye 007(made by Rare),Goldeneye: Rouge Agent(not made by Rare) as James bond Dies at the begging of the sequel in the FIRST scene.