Even though it's a big symbol of the show, and even though I love it to death, I actually hope they get rid of the sonic screwdriver. I'm kind of over it.
That will be the story arc of the new season.
The Doctor loses his sonic screwdriver in the first episode, which turns him into a dark, moody, angry man. He spends the rest of the season tearing apart space and time in order to get it back.