Most Christian 'conferences' I've attended are terribly biblical. Usually they amount to a set of sermons: similar content, but longer; so even lower content density than from the pew.
But Christian conferences should spring from Romans 12:1-2. "Transformed by the renewing of your mind" should be the aim.
They could do a couple of things. Give a a Scriptural basis for our thinking about life and the world. Our personal philosophy and its function to critique the world and enable point target evangelism.
Some of the work of Stand to Reason heads in this direction, but not entirely, it is, in the end, Calvinistic (and to that extent not Christian, in my view), and does not take the Doctrine of Creation set out in Genesis seriously. It dilutes and de-historicises it with a materialist time scale.
Ironically, the one who really lays out the path for such a conference would be Francis Schaeffer (ironic because he's both reformed, although not entirely Calvinistic, I think, and rather unclear on his historical location of the creation).
I've just re-read his ground-breaking and re-orienting trilogy The God Who is There, Escape from Reason, and He is There and He is Not Silent. Add to that Return to Freedom and Dignity and Death in the City and you have content for a three day conference that studies, reflects on and activates his thoughts in our contemporary setting.
The conference would presume attendees having read at least the trilogy.
It would be fabulous!