This would be a good solution for both clubs. If a future permanent fee can be agreed the Kroenke's can plan around that, they alluded to willingness to bring forward money available for transfers based on future incomings last summer. I was just a little sceptical as to whether Stuttgart would be willing to lock themselves in because there are always player injury risks.From what I'm hearing it's definitely loan with obligation to buy, not option. Mislintat and Matarazzo want him on a permanent basis, but due to Covid and finances it's tough this season. Also seems like contrary to the general fear there won't be too many top performers leaving: Silas has torn his ACL and thus won't leave, Mangala , Coulibaly and Gonzalez injured, too. These are the 20m assets we got. I strongly assume Kalajdzic, Anton and Endo will stay as they seem very settled and haven't been here that long.
The obvious candidates to leave are Sosa who's apparently attracted interest from Bayern, Kobel who's on Dortmund's list to replace Bürki & Hitz as well as CB Kempf whom Eintracth Frankfurt are sniffing around. I'm doubtful about Sosa leaving, but losing Kobel and Kempf might happen, means we need a left footed CB and a GK while probably receiving around 20 to 25m for both together. Some of that will go into cash reserves due to Covid and then there's the need for replacments. So it's about keeping Mavro permanently but not having to pay the fee yet due to other uncertainties.