There are speculations about Arsenal allowing Thomas Partey to leave this summer. Honestly I don't really have a problem with selling Partey at that amount. The problem is also selling Xhaka as well. It'll really leave their midfield lacking in experience though. In as much as I want him gone too but not on the back of losing two of their midfield generals at one go.
Remember that the midfield is at the heart of how they play. Even if the new guy comes in and hits the ground running, we can't realistically expect two new midfielders to hit it off immediately.
I personally prefer Arsenal to keep Thomas Partey and Granit Xhaka. But it seems that Arteta really wants to make big changes to the Arsenal club. Even though what I expect from Arsenal is to keep the existing players and add a few players to the attack line. As for the midfield, I think the two players actually played quite an important role last season. But Arteta seems to have a strong desire to bring in Declan Rice. Even though the first offer was rejected by West Ham. but it seems Arsenal have not given up.
In fact, there are many other names that are also being targeted by Arsenal in the transfer market this time. for example, like Timothy Castagne and Ilkay Gundogan who are also players targeted by Arsenal this season. And Arsenal are also eyeing James Maddison, who is one of Leicester City's mainstay players. I think this season the Premier League will be much hotter than last season.