Yes, this is one of my worries, too. A lot of the power combining looks pretty superfluous, for example, but it's been said that you can't get everything you want in a single playthrough. You'll be restricted in the full game, unlike the demo builds that have everything unlocked. I think you are actually only going to have access to a couple abilities/weapon upgrades(?) per playthrough, but I'm not 100% sure where the cap comes from (if there's even one at all). The way it sounds makes it seem less like Human Revolution where you could pretty much upgrade everything you wanted by the end of the game, rendering your "build" less important than the path you took getting to it.
There is also resource management to consider. I have no clue how crazy we're going to be able to get with spamming stuff. I assume ammo and mana whale juice or whatever will be limited to encourage scavenging around and avoiding confrontation. Nevertheless, I hope it's all balanced in some way. A full offensive run may not be as viable as a stealth one depending on how intensive playing like that is. Somewhere something is going to suffer, but I hope it skews in the direction of needing to play smarter than being able to run around 1hko-ing everything nonstop in frivolous, ultimately meaningless ways.
