I think she'll be back on here, though I can't say when or why I have so much faith in it. Gisele certainly has a lot going on these days.No idea. This is the kind of question that Gisele used to answer here in this forum, when she was still interested on it. She has obviously moved on with her new projects and she's been also busy with personal issues, apparently. Who knows.
The best thing for you is trying to get to her website and ask her, or the webmaster, directly.
In spite of the fact it contains some of her oldest and most ardent fans, this forum can't be really high on her list of things to attend to.