One is the company name, one is the president. I have cleaned up one part with Mayor Domino which was a little odd.
Not sure why that wasn't fixed in R03e (if it happens there), but it won't happen in R04, and all bugs from R03 are there to stay. R03 is no longer supported.
If the change to the battle area is purely a cleaned up version of the original, it may be possible to add it. If the new battle graphics are huge or too different, however, I won't
It can be added separately.
You're welcome 
Yes, I did notice that in the first part of the game. The reason I brought this part up is because the dialogue seemed to be referencing the company more than the president, who was already dead by that time. However, I didn't keep a separate save of that section, so I'd have to start a new game to confirm this.
I'm watching for the release of R04 with great anticipation. Since it you have stated it will work with the Steam version, does that mean the Converter will no longer be needed?
Here are the fields I was referring to. It looks like they are the original fields, just with a filter applied. Satsuki might be able to give more information if s/he is still around. I was looking at repacking the LGP files myself if needed, since I'd rather not deal with pixelation if I don't have to when the models aren't pixelated, but if someone has already repacked the files (or if they might end up being included in your great mod), I would rather not go through the effort.