I recently spoke with Martin D and Daniele Cordella about plans for questionnaire / feedback / survey modules in future Moodle releases.
This docs page has been set up to document what's going on: http://docs.moodle.org/en/Development:Survey_2
I know I shall be filling in my favourite Questionnaire features!
Since Moodle 2.1 is expected during the summer of 2011, its unlikely that the new survey module will be in that release. Maybe the next one after that!
I think there are plans for a new forum to track feature requirements, development progress etc for the new survey module at some point, so look out for posts about that sometime soon (ish).
