It is my understanding that those databases that originated on Jewishgen and are stored on Ancestry servers, would be free on Ancestry.  Other databases such as JGFF were never available on Ancestry and are only available on Jewishgen.  To the best of my knowledge there was never any "priority" for Jewishgen donors.  Jewish is included as a type of collection.
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Sarah L Meyer
Georgetown TX
ANK(I)ER, BIGOS, KARMELEK, PERLSTADT, STOKFISZ, SZPIL(T)BAUM, Poland
BIRGARDOVSKY, EDELBERG, HITE (CHAIT), PERCHIK Russia (southern Ukraine) and some Latvia or Lithuania
https://www.sarahsgenies.com