My own personal opinion on the subject:
#1. Will mounts be killable?
-- killable no, lootable yes (items stored in your mounts inventory space can be stolen)
#2. Can each character made on the account get a mount?
-- forum reward mounts (account wide), in game acquired mounts (per character)
#3. Can mounts be placed into a bank slot? be exchanged? are they bound to account? bound to character?
-- no, no, yes, yes (with exception of forum reward mounts, and possibly cash shop mounts)
#4. If you have a feral mount .. but lets say in the case of a tamed mount... and then give it to another character...
-- you can't trade in game acquired mounts to another character
#5. Can you be dismounted from a mount in combat?
-- yes (you should be)
#6. Are there shrink potions for mounts? Hitching posts? portable bags? How does one dismount? or "Stall" their mount?
Are there locations for this?
-- no, why not (if mounts will require food/water), (some) mounts will have own inventory space), by pressing appropriate key xD, stall? you stop moving by clicking on ground near your characterxD
#7. Can saddles be upgraded? ones that 'enhance' animals abilities? speed? deflection? magic resist? so forth?
-- depending on if it's something combat oriented or P2W (then no), see previous comment, i think all mounts will have same speed, i don't think mounts will have combat skills, or be upgradable in such way.
#8. Is there mount armor? Bronze/Iron/So forth craftable?
-- I don't think mounts will be upgradable combat wise
#9. Can mounts be resurrected? Killed? spirit bonded?
-- don't think mounts will be killable, they will only be lootable
#10. Can mounts be 'healed' by bandages? magic? so forth?
-- mounts will not be recieving any damage
Above is ofc. only my personal opinion. We will see what we get.