yeah honestly, I think some things will change. Surfaces i'd bet on getting toned down at least, likely by granting a save vs their effects (which would be pretty inline with pnp). Time will tell.

And if the modding tools are decent, I reckon you're right that any innaccuracies with pnp will be "fixed" in some kind of pen and paper rebalance mod. If the modding tools arent decent enough to do that, I bet they'll still get fixed, just maybe through slower process.