Just saw all of the Seth stream and the new Max video. Just going to list some points for each characters.
NOVA
*Unlike previously assumed, Nova DOES in fact have an 8 way air dash and it's decent speed. Has a flight mode too and it allows him to do flight cancel type combos. His dashes are normal cancellable so you can bet your BALL SACK he will have some baller air combos. Seth says his tri-dash is like Iron Man and I got sad when he said that.
But seeing Seth perform that tri-dash into swoop up makes me think that Iron Man has something similar to that as well. Probably needs some lab time on that.
*His assists are Gravimetric Pulse, Nova Strike and Centurion Rush. Centurion Rush is actually his cross up dive kick that should be fairly useful in certain situations. Gravimetric Pulse as an assist is weird to me, without red health I don't know if it would be useful or not because it's just a short plasma attack. Nova Strike is his standard lunge attack and I BELIEVE it's his wall bounce version as an assist. I will take the Stagger version too just not the Light version.
*Aside from the Centurion Rush dive kick he also has 2 other Centurion arts. One is the OTG Slide like She Hulk that hits low as confirmed by Seth. The other one is the Captain America Charging Star that has projectile invulnerability at the very least and can be cancelled into launcher for a combo. Dive kick isn't an overhead... currently.
*Nova has 3 types of Nova Strikes (the one where he goes straight forward Human Rocket Punch). One version just hits the opponent into a roll, 2nd version causes a Wall bounce and 3rd version causes a Stagger. He has different starts up on these moves. One of these is available as an assist not sure which one.
*Nova has 3 types of Gravimetric Pulses. One is a straight forward plasma out of fists and the 2nd one is the anti-air version of the same. The 3rd version is his most interesting one as it creates a barrier (AEGIS REFLECTOR UP IN THIS BITCH) that appears to have some utility. These moves get powered up when he has more red health to sacrifice so there is bound to be some juice to them. No idea what the vanilla Gravimetric Pulses do.
*Energy Javelin is launched with S + Att and has 3 different variations to it that determines the angle. Has decent tracking ability and works like a single shot Hidden Missile. Good for defensive and offensive purpose, a great all around tool.
*Nova's j.S is like Vergil's j.S which is an angled down DIVE FIST. Nova can combo off of that but since it's multi-hitting it scales up the combo some. Causes hard knockdown after hit. Slam fist hits OTG as shown in the video and hits overhead.
*Fast ground dash, fast air dash, fast flight cancel, good normals in speed and range, excellent slide attacks, invulnerable special moves and an invulnerable hyper move, great throw game, good overall damage, decent health and decent mix up options. J.H crosses up like a champ and his j.H OS game should be quite good.
*Invulnerable hyper on start up which is his Cannon hyper and has to be controlled 3 times I believe. Gravimetric Blaster gets powered up with red health and apparently the other one does too (Inferno one). All of his LVL1 hypers are doable in the air. These can reach up to LVL3 damage with enough red health and there are 3 levels of power ups to him losing health. As mentioned before, these power ups apply to his Gravimetric Pulses as well.
PHOENIX WRIGHT
Alright I finally understand him more now.
*So he has 3 stance: Investigation, Courtroom and Turnabout just like the leak said. Investigation is your vanilla gather evidence stance and use Maya to buy you time. Once you get the evidence pieces you can use them in Courtroom mode for some really insane projectiles that spray all across the screen and each evidence is tied to a different button (both acquiring, discarding and using them are on the A, B, C slots). Each stance has it's own hyper, Investigation has that Maya hyper, Courtroom has the Gavel hyper OTG and Turnabout has the LVL3. Turnabout stance is his "god" stance and he has to actually hit someone with Objection to get it off but once he does he gains insane normals in range, damage and speed plus a LVL3 that basically guarantees death. LVL3 is NOT unblockable I haven't heard any mention of this in the stream but it hits everywhere like Gravity Squeeze and OTG. Turnabout stance ends when he uses his LVL3 or when it drains out then he has to start all over again.
*Some of the junk evidences do have uses like Meat giving him health.
*Can combo off of throw in the corner.
*Get Em Missile hits Low apparently and acts like a projectile. Is available as an assist.
*Random j.H has random property to stun. Lame.
*Power ups/stance etc persist on tag out. More durability on projectile, speed and damage.
*A lot of his normals have insane recovery and should be cancelled into something else. Poor range as well.
*Can gather evidence pretty fast and if he gets what he needs he is set but if he doesn't he has to throw stuff out and pick again which takes time. Lots of luck factor involved here. The Maya moves have insane cooldown so if he doesn't have that available he is pretty much FREE to rushdown.
*Since you have to combo into his 3rd stance, keepaway tactics should be effective against Wright as obviously he has NO way to rushdown. He will probably have to sit there and play projectile wars although that might not be too bad for him as he has very good projectiles in Courtroom stance. His 3rd stance does persist on tag out.
*Has a banana slip over head attack. While it can cancel into his launcher, Seth was having trouble hitting with it which tells that the sneeze launcher has a crap hit box too.
*Slow dash, single OTG capability (has to have an assist to relaunch), below average damage, crap normals (both in range and recovery), 0 mobility, mediocre throw game and average health. Of course most of this stuff changes in his Turnabout stance.
*I think one of his assists is the "Haters gonna hate" move and the other is the paper spray.
*Pretty much requires that you use him on point with a lockdown assist like Eye of Agomotto, Hidden Missiles, Cold Stars etc.