3.5e already has three separate tracks to monitor for hit points (lethal, non-lethal and temporary), three modifiers to ability scores (damage, drain and bonuses/penalties) and a whole slew of different spell effects that provide miscellaneous modifiers to a variety of traits (Bless / Bane, Prayer, bard song, etc.) all of which have to be tracked independently.
If even some of these effects can be unified under a single system such as the Condition Tracker, the net effect will be less stuff to track, not more.