This was getting rather off-topic in the original thread, so I'll start a new one. My idea: Instead of having 6 party save slots, have 6 slots for each char. Many players don't have all that many chars, and wouldn't use the slots on some of the ones they do have. And this would have no problem being used in the middle of an adventure because you're only changing items, not party membership. If two chars try to load an item you only have one of, the second one would end up with that slot empty and highlighted in red. The six slots could be shared between SP and MP.
Party management could definitely be improved. Having character based slots is a great idea. It would be much better than the current system because you could quickly combine different characters to form new builds. Right now replacing one team member is kind of a pain. I would also like to see something that would show me the cards before I load the thing. Right now I have to try to come up with creative names, with the limited amount of letters available, that somehow describes how all three characters are built. I'd much rather see the cards than "Elven Rush Warriors" or something.
