I like the idea of specialization, I can't say I like the idea of getting skill points and derived stats after lvl 25.
The original approach allowed the player to still grow in power beyond lvl 25 but in a limited way, only by picking those unique and specific veteran feats. I liked this idea, it would prevent the player from becoming a jack-of-all-trades with too many skill points and wouldn't have much of an impact on the base game balance outside of late game encounters, while still being satisfying. The new approach makes the player grow in power even more after lvl 25 than before in all aspects. This will necessitate some serious re-working of the base game to accommodate this change, both combat encounters and skill checks outside of combat.
I have no problem with that if you guys can pull it off, but that will most likely take a lot of work. I guess I just don't want it to end up like Fallout:New Vegas where DLCs completly destroyed the base game balance by raising the level cap from 30 to 50, which in turn allowed the player to max almost all skills and pick way too many perks.
I really don't think that 5 levels worth of skill points would really allow for a character to become a perfect jack-of-all-trades. Especially when you throw psi skills in this.
It absolutely could if the base game is not adjusted properly. That's 200 bonus skill points. Even if you spend 5-15 of those every level to max your combat skills, it still leaves you with enough to completly max at least 1 skill or get 2 or even 3 high. Taking skills like persuasion/intimidation/mercantile or dodge/evasion would no longer be a true trade-off like it is now.
To give an example, most of my low armor penalty builds put so many points in crafting I rarely bother with dodge/evasion since they take a lot of investment and crafted shields/armor provides adequate protection already. I have moblity, I have stealth, I have good damage absorption, my only weakness is that I'm almost guranteed to get hit everytime and if my shield is gone or easily penetrated, I'm not going to last long.
With 200 more skill points, I could put 100 in evasion/dodge and most likely get both of them to 200+ effective skill with infused siphoner tabis and other bonuses. Now my only weakness is gone. Even if I get hit by an EMP or are forced to take melee hits, I have enough dodge/evasion to easily survive regardless.