Arsenal are set to be without European football for the first time since 1995-96 as they languish 10th in the Premier League this season.
The Gunners were sensationally upstaged by Unai Emery's Villarreal in the Europa League semi-finals on Thursday as pressure mounts on Arteta, who replaced the former in 2019.
But Arteta expects to be backed by the Kroenkes in London.
"The squad needs changing," Arteta said. "There were already a lot of changes in December, something that has not been done in years, but it tells us where we were.
"Things are going to have to change and the owners are going to back it up."