You will not be importing exactly to the game but into a web called Dragon Age Keep (if you google bioware social you'll see that it's to the left of the option of this forum). That webs takes your saves and presents them like a tapestry of images, there are some videos around.
You can also use that web to change some choice about your save if you don't like it or to create new saves without having to play the game. Then DA:I will connect once to th Keep to download the saves from there. So basically all future games will use the Keep to import saves. It also helps to import saves in case you're changing platform or if you ever do.
That's basically it, you can look for threads, videos, blog post and Q&As for more details, but being in the beta I can say that from my experience it works really well.
As for Flemeth, there has been no info released about her, but it'd be strange if she wasn't in there.
Hope this helps