Good day to you Josuke. Your question is actually a good one. While it can be argued that Josuke is part-Josefumi and part-Kira, Josuke is no longer Josefumi per se. If Josefumi is truly "alive as Josuke Higashikata", in that sense, Kira's status should also then be "alive partly as Josuke".
I reverted your edit on Josefumi's status since it gives the impression that Josuke retains Josefumi's memories and as if Josuke embraces his identity as Josefumi. He himself says that he is neither Josefumi nor Kira as well (Chapter 92). So while Josuke may be physically half-Josefumi, Josefumi doesn't really exist anymore, thus why his status says deceased.
As of the moment, the status will be written as 'deceased' until we get confirmation from the other editors. Regards. :)