No need to wait -- I have shot a full 25 sheet box of Fomapan 100 in 9x12 cm (it's been available at J&C for quite some time, along with Efke PL100 in the same size). It's quite nice, IMO; it works well in HC-110 at higher dilutions (H and G), and likes Diafine as well, though it doesn't gain a huge amount of speed in Diafine. The times listed for HC-110 for this film in sheets on DigitalTruth's Massive Dev chart were submitted by me.
It makes good cyanotypes and enlarges well, doesn't seem prone to scratches like Efke is reported to be, and (at least to my eye and metering technique) seems to deliver a pretty good rendition of full film speed. Add in the price, and it's hard to argue.
The image below is a 6x7 cm crop from 9x12 cm Fomapan 100, shot with a 1927 vintage Ideal, 13.5 cm f/4.5 Tessar, exposure 1/4 second at f/5.6, available light. EI 160, Diafine.