Get more from the work you already have.
Reports, films and previous campaigns can hold useful thinking. I’d look at what is still relevant and how it could help with the next piece of work.

Find the part that is still useful
Find an explanation or idea that answers a current audience question. Check that the information and permissions remain suitable for the new use.
Give it a fresh purpose
Decide what the new piece should help someone do before choosing its format. That gives the adaptation a reason to exist.
Check what we can actually work with
Look for editable files, separate audio and approved imagery. A shorter film may need a new sequence, so check what is practical before promising variations.
Keep the meaning while adapting the treatment
Adapt the pace and layout while preserving the meaning. Statistics need context, and technical explanations still need a knowledgeable reviewer.
Start with a useful small set
Choose a few pieces around a real need. Agree a representative version before creating the rest, and organise the files for whoever uses them next.
Have good material that could work harder?
Send me the starting point and tell me what you need next. We can look at what is worth developing.
Talk through your brief