Oracle 12c - Container And Pluggable DB Config

We've all heard the news about the new 12c capability to have a container database hosting multiple pluggable database instances.

This obviously will provide significant reduction in overhead on systems (like Exadata) where we'd like to host multiple databases, but can't consolidate them due to conflicts that prevent them running under the same instance (public synonyms / dblinks, schema name collision, etc). Not to mention the effort required to get different application databases to co-exist on the same DB instance ... which in and of itself can be a major project.

My question - does the container database need to have the same character set as the pluggable databases?

If not, this still presents a limitation, as there are numerous vendors of COTS applications that don't (or won't) support ALT32UTF8, which is what we're building all our bespoke applications on.