The problem here is that as I believe StorMyu said previously (could be another member of the team, correct me if im wrong) in order to make english display properly, unlike the exorcizamus patch which used shortform to match the game's own word splitting, theyve heavily modified how the game displays text. For that reason, if they released a partial patch the english would display correctly but any Japanese text would be horrifically broken and just completely unusable.
Its a case of menu patch or wait for a possible full release really (whether from this team or another), that or fork out for a vita which I'm keeping an eye on sales/preowned for, not gonna pay full vita price for 1 game especially with sony charging snake oil prices for memory cards again.
Edit: Right at the top of this page actually
I see what you're saying, but what I mean is that if all menus, items, and script stuff up to floor 80 are translated (and I bet that's still a LOT), then wouldn't that essentially be an all-English experience, up to floor 80? (Once you get past that, then things go to pot, but that's where the domestic version of HF can step in). That's why I say "partial" patch. It puts something out there sooner and for the people who absolutely can't wait for the rest, they can be pointed to the HF game.