Its been almost a decade since I user Fomapan in medium format and a few weeks ago decided I will give another try to see if they've got it right.
The box of 10 rolls Fomapan 100 120 I bought from my usual local shop in Germany are dated 1/2014, the base is slightly bluish and looks like polyester (ala Polypan F), the side marking read ULTRA 100.
Excellent result in Rodinal 1+50 and free from any issues that I experienced with Fomapan 100 and 400 films years ago.
Now that Fotokemika is gone, its looks like the improved Fomapan is my choice.