This would be nice. It sucks playing as QoT and then having your teammate drop (especially with all the 2v2s on Skirmish lately). The AI doesn't understand shielding (and I'm sure auras, healing, flag caps, etc), and results in me having to shift my build in the middle of a game. I'm not sure the AI needs a total overhaul, but it's priorities are not always right. I don't know how many times I've dropped a player to very low health and watched as the AI teammate ran right by, ignoring the enemy. It seems to prioritize flags on the opposite side of the map, even when a teammate is in the area and even when the AI has no teleport scrolls.
My biggest complaint about the AI though is how it stands next to locked flags as if it thinks it can override the lock.