Shane Black the new director of Iron Man 3 has stated 'no mandarin' as he believes The Mandarin is a racist caricature (I was disappointed)
I've said it a million times (at least half of those on this site), and this is going to be one of the last, F4 is not owned by Disney/Marvel studios and FOX have had it in a statuses of per-production to simply hold onto the rights.
That said, even if/when they make a civil war movie, who cares who the Human Torch is, he gets glassed in the 1st issue, and is comatosed in hospital for the rest LOL!