MrMattyPlays is a channel that seems to be doing regular updates on The Outer Worlds. Some stuff that has come out:
It seems as if, like New Vegas, the skill and perk system is somewhat similar. There seems to be an equivelent to SPECIAL, but with only 6 stats, 2 of them being Strength and Intelligence.
There are speech skills Lying, Intimidation and Persuasian, and there are tech skills such as Science, Medical and Engineering. There are some skills designed for weaponary, which seems to include some sort of melee weapon skill, and a subset of science weapons like a shrink ray that actually use the Science skill to get better rather than gun skills. There is also a stealth perk.
There are also debuffs, which are a bit similar to Traits in New Vegas. You can have up to 3 debuffs in a normal game, more in a harder game, where you become weaker to something such as a type of enemy or something like fire, but you immedietly receive a perk point in return.
It seems to be implied that skills have a cap of 100, again like New Vegas. Every 20 skills points into a skill, you get a perk, or you unlock the ability to buy a perk? Not too sure about that. i.e. If you get Stealth to 20, you can then do more damage while in Stealth.
In terms of story and characters, there are no essential NPCs, in that you can apparently kill anyone you want. The mad scientist character in the trailer that releases you from cryo, you can help him or you can betray him and turn him into the authorities the first chance you get. You can have alliances with people and the corporations that dominate over the 2 planets. Companions may leave you if you commit actions they are against. You cannot romance companions. Multiple endings confirmed, doesn’t seem to be any confirmation if you can keep playing after finishing the main quest like you could in Fallout 4.
You are allowed to have 2 companions accompany you at one time. Companions themselves have their own perk and skill trees, with each companion excelling in 3 particular skills each. When you level up, so do your companions and you can choose what they receive. They can receive their own special attacks, such as a dropkick for Felix. You can also spend skill points in buffing your companions in Inspiration and Determination, which increase the companions damage and their damage resistance respectively.
The Outer Worlds is not a triple A title, so no mod support is planned, no plans to add a third person camera, and while DLC may happen, no DLC will be planned until the game launches. The game is not open world, it seems to have more of a Borderlands style structure where you land in different areas which are fairly open but not massive. The ship serves as your hub for your companions and lets you select where you need to go, and you unlock locations by getting passkeys.
Apparently one of the devs have said that the game’s length will be comparable to Hellblade: Sensua’s Sacrifice, which is a little surprising considering that game isn’t that long. Certainly, I don’t think The Outer Worlds is going to compare to Fallout in terms of time or scope, so hopefully we are looking at something more in the realms of say, the recent Deus Ex games?