How's the Colliseum working out? Got any info on what's changed? I can't remember if i suggested an overhaul within the last 3 forums or not.
We have plans for it. That's all I'm at liberty to say.

I'd also like to see new Blitzes, and a slight damage formula change where Vigor, Weapon power, and Hit% determine the final damage or enemy evasion.
We added in a damage mod to Blitzes quite some time ago.
And speaking of changing some character skills, is there a possibility to change Runic to not only absorb the MP but to have a % chance based on Magic Defense % to randomly reflect casted magic spell?
That makes no sense. Why would Runic randomly reflect it back? It's effectively a lightning rod. What's your logic for this?
Change Lore to randomly not cost any MP--formula based on Magic Power and or Stamina.
What logic is there for "randomly costing nothing?"
Make Sketch actually useful?

Way ahead of you here.
Maybe say if she successfully sketches a monster and casts a normal learnable magic spell it gives her an extra magic point or % increase in learning said spell?
Hmmmmm....
Have one of Shadow's retort dog actions be replaced by a random Throw or a regular attack.
Not sure how feasible this is. First, you'd need to check the
entire inventory for something to throw (that adds a ton of lag). Then you need to check the number, then if it's actually throw-able. Even if you were to check only for the shuriken, it'd still loop through the inventory before it is found, assuming it's found at all. This one sounds like a nice idea, I'm just not sure on how to implement something like that.
Remove "Summon" battle command and create "Geomancy" where the character of choice who has this skill--whether it be naturally obtained or through an item--can cast a random enemy skill/spell that doesn't make the character Berserk but it costs MP.
Hmmm...
Have a map somewhere in the game that can randomly spawn ANY of the non-boss formations regardless if you fought that battle before.
Now that would be Veldt++.
There's more to it than that. There's no way to distinguish between a "regular encounter" and a "boss encounter." Besides, if something like this was added in then there'd be no chance to miss anything.
Increase the ability to have more than 99 items.
Well, the game already does to a certain extent. The maximum number of anything you can have is 255 (this is evident with the Sketch bug, as there can be 255 of any item). However, what's the reasoning behind it?
Create random "air" battle formations for when you are flying the Enterprise and or Falcon.
There's no Enterprise, you're thinking FF3. FF6 had Blackjack and Falcon.

Kidding aside, I'm not sure how to add a sky domain for random encounters.
Reduce the number of Chocobo stables,
Doubt that will happen.
or increase the price significantly.
Hmmm, that depends. We'll see what happens with cash flow.

Create "item quest" NPCs. For example create some random NPC in Mobliz that asks if you have or can find "x" item and if you bring it to them they will give you "y" item. This would be a good way to distribute some rare and or powerful stuff.
Hmmmm...
Item exchange NPC. Give the NPC 3 Tonics and get 1 Potion. Give 4 Tinctures to get 1 Ether. Give 2 X-Potions and 2 Ethers to get 1 Elixir. You get the idea.
That would require a ton of new dialogue indexes and a pretty big event. Unfortunately, there's no way to check current inventory, so I don't see this happening.
Expand the Colliseum to its own large island with its own mini town/village and shops.
Expanding it to its own island probably isn't hard. Making it its own town will be hard. We have no idea how to expand the maps yet.
Create a monster rancher NPC that can allow the party to fight WoB formations that people might miss the first time through--IE Intangir etc.
Hmmmm....
Some newer ideas..
Create a "random" elemental... so that the weapon deals random elemental damage on a target.. make it powered by your level or some cute formula (similar to the Atma Weapon).. and allow enemies to attack you the same way as well. If the enemy is immune to all elementals, make it non-elemental in this only case (unless you want it useless later on).
Hmmm....
Create a variation of the game that has MP as a dependency. Treat 0 MP to instant death (a variation on the enemy attribute) on your own characters (it makes Rasp/Osmose more threatening in this game).
Paging, Star Ocean: Til the End of Time, you are needed in operating room 2.
Economizer must be removed or changed into something like the Regen Ring, except for MP...
The Economizer was one of the very first changes. "All spells cost 1 MP" -> "All spells reduced in cost by 75%"