Who will be in Book 7?

[Hagrid]

No: HPFGUIDX 155191

We have seen many characters from the wizarding world come and go. Who 
will return in Book 7? Especially, those that are not expected?

Crabbe and Goyle have been in every book, so I don't mean people like 
that.

With Fleur's wedding, Mdm. Maxime and Gabriel Delacor may come back 
and not do anything special - so they are expected with no exciting 
twist to the story line there.

I mean characters like Norbert, Hagrid's pet dragon sent to Romania 7 
years ago. There are real possibilities of a suprising story line 
there if a tame Norwegian Ridgeback supports Harry's quest.

When the release of Book 7 is upon us, this may be similar to one of 
the questions that comes up. Like last time, there was, "Who is the 
most senior character that dies?" 

So be creative!