Sadly the teaser posted to a few Twitter pages does not suggest a return to EDI (and MAN for that matter)
Said teaser can be found on the IshrionAviation Twitter page but the link won't work here
It does suggest 5 routes although I do wonder if American will class any routes lost to COVID as simply route resumptions
We do know that AA's intention is indeed to return to EDI/MAN given slot requests ETC
Let's hope for the best!