I've never tried Neopan 400 and I don't shoot 135. If this comes back in 120, what's it like? Is it a fine tabular grain like Acros or TMY2 (probably my 2 favourite films) or is it more of a Tri-X/HP5 kind of thing?
And while Fuji is bringing stuff back, how about bringing a few more of the C41 emulsions back in 120 (160C!) and 4x5.