I'm also going to add a list of features that I plan to implement. This is kind of my record instead of doing it on paper or a text document. If you guys have any other ideas, please, feel free to tell me.

Basic Version (Just Battle):
- Chat lounge that allows players to:
1) Chat with other players
2) Recruit team members (NPC's)
3) Shop for weapons, armor and items
4) Check out your own members stats and other players as well
5) Join or create battles:
i) Choose the map
ii) Number of members each player can use (up to 10 I think)
iii) Choose whether there is a set start point or whether players can set their members randomly.
iv) All sorts of restrictions (eg. Spells, Races, ect)
v) Choose whether battle ends when team leader is deafeated.
6) Observe another 2 players battles
7) Possibility of TEAM battles, 1 vs 2, 2 vs 2, 1 vs 3, ect.
- Battle
1) Screen moves with battle
2) Hold down a key to have full control of screen movement
3) Terrain attributes (I will need help with this as I don't know how SF uses terrain.)
4) Mouse over member gives stats.
5) Full keyboard control (keeping the oldschool feel, mouse over is the only mouse usage)
6) Day and Night for extra effect (possibly?)
7) Turn based (Obviously)

Chat system
I'm not sure how that battles sequences are going to work just yet, so some thoughts on that would be great.
- Other
1) Your leader is multiclassible with over 15 branchable classes so far.
2) Members level up and are stored on the server for safe keeping.
3) Unique armor and weapons for each class.
4) Tons of spells for magic users
5) Classic flying AND swimming enemies.
Full Version (If battle version takes off):
- Full world to explore and meet NPCs that will join you.
- Quests with an oldschool feel, none of this collect 1000 rattails crap.
- Gain spells and skill through quests that not everyone can have.
- Use any map outside of buildings as a battle map with another player.
Hope you guys like some of the features, most of them are fairly common place, but I plan on using some unique elements as well.
Ciao!