There is ONE other person who is working on a remake for Phantasy Star 3... I was simply throwing out ideas... However, I had found a page with a guy who had a REALLY good rant on PS3, and saved it... He had said...
1. Finish the cave system and eliminate the Laya Pendant:
1a. Ryan comes with a gemstone to open the Divisia/Aridia cave instead of the Twins Ruby.
1b. Mystoke holds the "Snow" gemstone that is coded in the original but not found, it unlocks the Frigidia/Divisia cave to access Aerone.
1c. Kara comes with a gemstone that opens up the Dragonia/Aquatica cave, providing access to Sage Isle (by taking away the Airstrip and Dock by Agoe this becomes the ONLY route)
1d. Sage Isle contains chests with three gemstones, one each to unlock the Dragonia/Terminus, Aridia/Terminus, and Frigidia/Terminus caves.
2. Fix the shops:
2a. Put items that make sense in all the shops of Cille and the item shop in Shushoran.
2b. Sell Star Mist and Moon Dew in New Mota
3. Make the land bridge to Cille work throughout generations 2 and 3, if for no better reason than to see the ruins.
4. Aron's Laya keeps her XP from her time with Nial
5. Fix the Ceramic Shot. Row attack is too overpowered.
6. Make techs useful buy increasing their effectiveness (be sure to make Ner, Shu and Fanbi non-stackable).
7. Make gemstones have stat bonuses so equipping them has a purpose and adds an element of strategy (think accessories in modern RPGs)
8. Increase the difficulty to accommodate for points 2, 6 and 7.
9. Make the Force Shield, Emel, and Claw only cast techniques in battle, not out. They're just too broken now.
10. Eliminate all escapepipe glitches.
11. Give Gwyn technique growth.
12. Allow access to Satera in Rhys' generation. Use this opportunity to put in the backstory of Lena being Rhys' original fiancee. Lock the cave to Divisia until after Satera is destroyed.
13. Give Laya a more logical name.
14. Make Laya's Bow and Lune's Slicer actually worthy of being called legendary weapons. Make finding them a quest instead of handing them out with Laya and Kara. Maybe hide them in caves to Terminus?
15. Actually give players a clue as to where to find Siren's Shot!!! I'd move it into a Terminus cave too, forcing players to use all three.
16. Eliminate the Pron glitch.
17. Eliminate the glitch that removes monsters from some parts of dungeons (Lensol after rescuing Thea, etc.)
18. Allow targeting of back-row enemies. If there are still front-row enemies when that person acts, they get hit instead.
19. Deepen the story:
19a. See point 12.
19b. Explain how the weather got screwed up
19c. Explain why Ryan is fighting Lune (look up the "Lune marries Thea if Ayn doesn't rescue her" theory)
19d. Explain why you can't just leave Orakio's sword alone and keep Dark Force trapped.
Hacking original PSIII would be best choice if yo want to "fill" the game. Although only few programs exists to edit PSIII rom and real hex-edit-hacking is quite hard (unless you know much of it, ofcourse).
I only know of Aridia, and it's VERY limited... What else is out there?
I've traveled back in time... 300 years... Just to call you a "Cracker"!