Joao brothers aka Felix and Cancelo looks really different when they were playing in their old teams and when they play for Barcelona, I expect Barcelona will sign both of them permanently. Barcelona need to prepare at least 200 Million Euros because Atletico Madrid tend to ask ridiculous amount.
You are right, both players are having good forms and playing well, scoring goals etc, most especially Joao Felix who has underperformed in couple of seasons now. With Felix and Cancelo performing well; it means Barcelona needs to prepare another loan offer for both players because they cannot afford to sign them both