thanks
I cannot have a definitve opinion now, but when you look at the Aria headstock, you can see the "flower" is   exactly at  the same position than the Eagle - that is not the case for the Ibanez that,IMO , the inlay is in the middle of the headstock (considering the length)
Sorry, my English is bad, I have difficulties to say exactly what I want !
the flower-inlay is between the "middle-mechanics" on the Ibz
and exactly like the Aria on the Eagle.
and...so what ?  
 
   
It is not a clue, just a look at !
I think that "exactly" is the word of the day! 
 
I'm sure that small details are missing to solve the mystery