Well, there have been rumors that he and Moneypenny might be back in some form, but as far as crazy gadgets and stuff, they're still trying to distance themselves from the excess of the Brosnan era (Although there are still gadgets in the Craig films, they seem to have a more practical use). Then again, Q had fairly large roles in the Dalton movies, which like Craig's films were going for a more serious tone.
Are you saying that Q kind of equals crazy gadgets? I'm not sure I agree with that. Much like they did when they switched from Brosnan to Craig, they can find ways to scale back Q while still making him great.