I dunno about vials, but I do have testtubes.. I think they will work the same. So yes, we can make potions, but the potions will be usable only storywise. It won't be usable to heal, say, your VE (though, you can RP that you use it, then heal the person you use it on with a heal spell to RP the effect into reality. I think the heal spell will be available when the wishshop is implemented. Just name the spell words into "potion of healing - xxx"). So, just like inner magic, it's use will come during daily RPing, and its full potential will come out during acknowledged story events, such as if you are involved in a story in the AL, or if another war breaks out and you decide to participate. You can use the item to force-alter part of the story to favor you, by using the potion to heal you completely when faced with a strong enemy, or if you don't want to use it yourself, you can simply lend/give it to someone who needs it in return of something you want from him/her.
Potion making itself shouldn't be too hard once you have the ingredients (I'm sure the item committee won't make it hard to make), but on your case, jazira, the hard part would be actually making the blood, seeing how powerful it is. Considering that a spell of similar effect, the Heal spell, costs a WP to cast and still requires the caster to have the 4 spell pages as well as the correct combination of principles chosen (and even then I don't know if it can heal all kinds of illness/disease), a cost of more than a single WP might be required. Such an item would definitely be worth it though, if you get some, I'll certainly be looking forward to trade for it =)