Arsenal have confirmed that Zak Swanson and Zech Medley have both left the club on loan as they start at the bottom of the alphabet and work up meaning a Willian announcement is probably not far off.

On Monday afternoon, Arsenal confirmed that they had agreed two loan deals for youngsters from the Academy.
Zak Swanson

19-year-old Zak Swanson will spend next season in the Netherlands representing MVV Maastricht, where we once sent Kelechi Nwakali twice.
A defender who has been at the club since he was six, Swanson signed his first professional contract with Arsenal in 2019.
Zech Medley

Medley will spend next season with Gillingham, who play in League 1 where they finished 10th.
The Gills, by their own admission, fought off competition from ‘no less than three Championship clubs and a host of League 1 clubs to clinch the signing of highly rated Arsenal central defender.’
https://twitter.com/ZechMedley/status/1292861168684597249
“We are delighted that Zech has joined us,” manager Steve Evans told the Gillingham website.
“The lad has taken his time, spoken to numerous clubs and he is a superb addition.
“I would like to acknowledge the support of Mikel Arteta and his staff at Arsenal for agreeing that Zech should continue his education here.
“He is actually a Medway boy, he went to school in Gillingham and his family still live here, in many ways he is one of our own.”
Willian next?

Willian has said goodbye to Chelsea and Chelsea have said goodbye to him.
All signs now point to him being announced as an Arsenal player as soon as the ink is dry on his three-year contract that will see him take a weekly paycut to play for Arsenal, thanks to the extra security of that third year that Chelsea refused to offer.