Although "Panama" was erotic, unfortunately there wasn't anything explicit in it.
As for "Ana, mon amour", from what I could gather there could be explicit scenes in it, but I believe they will are done by pornstars and the use of prosthetics somewhat, so it will not really be the actors.
Here is an extract from one interview (translated using google):
"But the most difficult aspect was linked to 'prosthetics', for sex sequence. It was a pressure on the players and flat was a difficult and sensitive part to Manage. The sequences are filmed with prosthetic actors wearing prosthetics, we see on screen are not real sexes."
And since they are talking about effects, my guess is that they will be digitally imposed on the actors, just like in "The Nymphomaniac", which in some articles they seem to mention and compare.
Such a shame...