Assuming an average of 3k dps per pet (which I would consider on the low side of dps scale, especially since there's 70% top-two tier dps), that would net a total of 30k dps in swarm alone. Add Enchanter's Arm (old version), that means a 15% dps boost, and you're hitting 35k dps. Throw in an AE haste and you're set!
Sooo.... Looking back on this, I might have been a bit naive thinking that we were going to be put on par with other classes. DPS is more like 10k total for all doppelgangers together, they dont last, they can't be buffed or healed.
You can't keep t3/t4 up indefinitely, and even if you could you'd be looking at the whooping 6k dps max increase (parsed over 4 casts, 4-6k dps)
Oh well, they're fun and they're a good step in the right direction, I suppose. I just hope this isn't everything, as we're still only halfway decent now.
