Fabrizio Romano has now detailed the ‘possibility’ of one of Arsenal’s most exciting youngsters leaving for good this summer. It’s been quite the season for some of Hale End’s most illustrious talents, with the likes of Mika Biereth, Charlie Patino and Arthur Okonkwo all enjoying fantastic years out on loan away from Arsenal. Yet with Mikel Arteta’s side as strong as it has ever been, the possibility of any academy graduate making it into Arsenal’s senior squad now remains low, with only the best of the best, such as Ethan Nwaneri, having a real shot at making the leap into the first-team. And…