What Joao Felix has done so far has also made Barcelona happy and Barcelona's decision to respond well to his desire to play at this club has at least paid off, with the very little money they have spent in the transfer market and with what is currently being shown it is quite profitable for Barcelona, and the next thing is how they patented Joao Felix as a full Barcelona player.
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.
Well, in my opinion this is a relatively expensive fee but also quite reasonable and in any case the role of these two players is very important for Barcelona's development. We know that there is no doubt about the quality of Joao Felix and Joao Cancelo, it has been proven that in several previous matches both of them contributed goals to Barcelona's victory. But again, where can Barcelona get that much money with the current financial situation and it seems very impossible for Barcelona to make him permanent. I think that if the loan contract ends, Barcelona must be willing to be prepared to part with both of them.