This is not AS, you should take the initiative to research what you need to research. Teaser trailers are not as formulaic as opening sequences so your research will be driven by the kind of teaser your group is going to produce.
Also what form your reasearch takes is much more up to you this time. Remember the marking criteria of "excellent use of digital technology" and "excellent level of care in presentation".
So get creative - make your blog look good. Invite people to look at it and comment on it (good use blog format).
•Research – trailers/posters/magazine covers
•Treatment
•Storyboard
•Script
•Pitch presentation
•Audience Research
•Props/Costume list (evidence of organisation)
•Production schedule
•Shot list
•Call sheets & actor release forms