He MUST do it. When I heard that the Farrelly brothers want to do Dumb and Dumber 2 and that both Jim Carrey and Jeff Daniels would be in it was like a dream come true since Dumb and Dumber is my most favorite movie. Not just Jim's but most favorite of all!! Of course they need the old style like in Dumb and Dumber in the second part instead of making it like a "modern" comedy movie, though.
Then I read that Jim backed out and was like, "NOOOOOOOOO!!!!" I don't know if it's just because of lack of enthusiasm of others or maybe also because Jim wants to do other and more serious movies than he did in the past. But he has already proven that he can do other movies and so there is nothing to lose for him. On the contrary, I'm sure D&DII would be very successful.
Maybe you guys should all beg him on Twitter about it (without endless spam, of course). I already did
. Maybe we can change his mind when he sees how much his fans want to see a real D&DII
.