I'm pretty sure they will because all the name patching is already finished. If you have an old save game with japanese character or senator names then you might have a problem. The talk.dat and the eboot.elf is not affected by this problem. I've a save game which I'm using for testing all the time. But you will see that the first loading takes a long time after a new patch is applied.
The character "Emizel" causes a crash when looking at his status. Maybe a character description error (charhelp or magic). Also find some small bugs which can be fixed easily. I will check it and fix it later.