I didn't read all responses in this thread, but a common response to your #1 I've been seeing is that AQ at TH8 will be OP.
I've posted the following idea several times in the past that Supercell should shake up all the lower THs with a major trickle down. Give the AQ to TH8, but also give it some of TH9's other defenses like one XBow. Take some of the TH8 stuff and give it to TH7... TH7 stuff to TH6... and so on all the way to TH2. Let people spend a little more time on each of the lower THs. Maybe even give some TH10 stuff to TH9 too. Shift a bunch of stuff down while trying to maintain an offense vs defense balance. Wars are pretty stale for TH9 on down - shake things up, keep stuff fresh.

