This is something that makes the core of rpg systems here, but from everything they've revealed it's hard to find find any concrete info on this. Some mention it's similar to Witcher III, others describe it closer to Skyrim: horizontal system, independent skills you improve in and distribute perk points in each.
If devs are reading this, we'd appreciate more info or for this to be more clarified in next presentation/interview/etc.
Is it one or the other or combination of both? Solo: combat/stealth/other "physical" skills, Techie: crafting and variety of skills relating to technology, Netrunner: exclusively hacking.
What about social or knowledge skills?
How many skills, approximately?
Are they stat dependent ( like with Fallout perks requirements) or gain additional benefits from them?
Do they use trainers in the world ( Arcanum, Gothic, etc)?
How does "fluid system works"? Is similar to Amalur or Andromeda: based on point distribution, you gain different passive/or active abilities benefits to certain playstyle ( as "more open" system of character specialization)
Can we respec?
Is it "improve by use" system ( or uses this partially) or strictly, more traditional, gain exp by completing quests?
Do you gain exp by killing enemies, using alternate routes, etc?