Do you think electricity would be effective on titans? A powerfull jolt would fry their nervous system while looking intact from the outside.
Too bad our heroes do not have knowledge on electricity :-(
If they wanted to eat Eren they would have done that 100 times by now and already forgot about it.
Annie had a perfect opportunity, then R&B when they kidnapped him and Yimir!
I think there is something more to that, it's almost like they want the coordinate to be passed to someone in particular...
Some of the things you said composes my theory as well!
The Asians, Ackermans and others (we know some noble families are also immune to mind wiping) are put in the wall to protect the secret.
The first king was a bastard who wanted nothing but absolute control in an "utopian" kind of...
After thinking about it is easy for us 21st century people to theorize about things with our advanced knowledge and google and wikipedia and whatnot to narrow the results... but if anyone in their world can figure it out it will be Hanji!
Since the translation of the writing on the vial with the serum says "regular titan" I doubt it will be used by Eren.
What use would he have by "reverting" (possibly) to a lesser form, it would be a downgrade at this point.
It will be either possible to use it by someone of some special...
They have a "spare" serum!
Now google the picture of a pomegranate and bone marrow for comparison and you'll get at what I'm hinting!
The titans are obviously artificially made beings, and what "creates blood" in the human body? The marrow! Not to forget that people who had marrow transplants...
Ah where to start, oh yes
How, most importantly why had they suddenly appeared?
My two cents either some sort of "forced" or "assisted/artificial" ascension/evolution of humankind experiment turned into a global human control thing, or the control and rule thing was it's main purpose from the...