What should a brand template include if more people are producing content with AI?
The Dropbox representative in the creative judgment panel described building templates so the brand team could help others produce suitable work and avoid rejecting every variation. A template only supports that goal when people understand its limits, since it can't guarantee the quality of everything made from it.

Start with one recurring format, like an event banner. Work out which elements stay fixed and which a colleague can change, and explain the reason behind the important constraints so nobody has to reverse engineer them from the example.
Include an approved example next to a plausible wrong one. Show how an unsupported claim, an unsuitable image or a difficult crop causes trouble even when the layout looks familiar, and how to fix each.
Say where the content has to come from. A text box labeled product benefit shouldn't invite someone to invent a new promise. Point to the current approved source and name who can answer questions about it.
Some things still need a review: a new audience, a different product claim, a format outside the template. People need a route to get that review, and nobody should pretend every variation is already approved.
Test the template with someone outside the brand team. Have them build a realistic variation, then look at the result and at the choices they made. Fix confusing instructions before you widen access. A layout with usable guidance beats a set of empty boxes.