My history doesn't go back that far, but when was the last time Fuji seriously dabbling with SLR lenses? I recall they did a series of SLR bodies not long ago but they used Nikon mount.
I can't see them becoming yet another mass market 3rd party SLR lens maker like Sigma/Tamron. Have they historically done exotic lenses that might be of more interest? Could they be "video" lenses?
Fuji currently makes all of the Hasselblad H Series lenses.
Fuji makes and designed the whole Hasselblad H system. It was initially the Fuji GX645.
Fuji has also hinted very strongly at returning to making high end luxury cameras.
Hasselblad was bought up by a German investment group. Seems that Fuji that has deep pockets was not interested. Fuji also passed on buying Pentax.
This rumor of Fuji making EF lenses may be just part of Fuji's strategy to bring it back into the high end DSLR market, both 35mm and MF.
Start by impressing the market with the lenses and then follow up with cameras.
I think it is safe to say that the sleeping giant has awoken.
No other large photography company has the dimension of the Fuji group.
None of the others have the "NEW" pedegree of still developing film cameras and bringing back
previously discontinued films.
Fuji could soon establish itself as the premiere photography company in the world.
Going back to the lenses I use the Fuji GX680 and the lenses for the GX680 system are
very special. The 180mm f3.2 with 6x8cm negatives or slides is simply amazing.
Fuji replaced Zeiss as the Hasselblad lens designer and manufacturer.
I can see this happening in cinema lenses too.
Unlike Canon and Nikon Fuji is a film manufacturer and it's S5 super CCD years ago had a dynamic range
that only very recently has been matched by other sensor manufacturers.