Congrats on your pregnancy!
Yes there is a chance of it moving up, but I am not sure what the odds of that are. I read that anything classified as placenta previa (including low lying and partial) has a chance of 90% of moving up by full term, but I am not sure what the odds for a complete previa are.. I posted a post to ask in the Pregnancy and Birth forum so hopefully someone can shed some light. http://www.mothering.com/community/forum/thread/1297134/placenta-previa-at-20-weeks-help
Do you know if your friend had a complete previa? It is a bit annoying actually because we have moved to Canada from Australia and planned to stay here for the birth before returning because of the good maternal health care options (in Australia, there is no cover under private or public systems for homebirth in our state).
Thanks for your offer!