The way I see our current/potential midfield next season
Pjanic/Wijnaldum/Roberto* - FDJ/Busi - Coutinho/Puig
*He'll still play a lot as RB though as I don't see us keeping Semedo AND getting a new RB. So if we'll get a new RB Semedo is gone.
I see Wijnaldum as a bridge gap until Ilaix is ready. So If he'll be given a 3-year contract that's good. Leave Ilaix in Barca B next season, train with the first team occasionally and play in some easier games. Depending on his development promote him next summer or send him on loan. Then in 2022 (when he'll still be only 19) he can return and start to rotate with Gini and in a year or two possibly take over as a starter if he'll develop as we hope.
Loan Pedri for a season or maybe two. Let's see if Puig can establish himself this season though I still believe Pedri has more longterm potential and will take away his spot eventually. Sell Coutinho next year (unless he'll turn into a real important part of the team) and let Puig and Pedri compete.
Try to sell Busi next year (with Xavi possibly our coach this will be almost impossible though and that's one of the reasons I don't want to see him back yet) and also use Pjanic as a backup to FDJ. Selling him after just a year would be for too big financial loss and I think his legs are still fresher than Busi's so I'd prefer to keep him. We'll need to see how he'll do this season first though. Maybe Monchu could also be kept as a backup DM after getting some experience on loan this season. Or Matheus Fernandes depending on his development (he'll surely go on loan).
Personally would like to get Camavinga next year but don't think it will happen. Look for alternatives for an athletic midfielder although I believe with FDJ, Gini (even in his early thirties), Puig, Pedri and then Ilaix in a few years we'll already have a lot more dynamic midfield than we're used to see.
So 2021/22 midfield would be like:
Pjanic/Wijnaldum - FDJ/Pjanic/Monchu/MF? - Puig/Pedri
Then in 2022 we could potentially sell Pjanic (unless he'll keep playing on a high level) and go like this:
Wijnaldum/Ilaix - FDJ/Monchu/MF?? - Pedri/Puig
Now obviously things won't work out exactly like that and we'll surely bring another midfielder or two in next 2 years but I think we shouldn't really spend big money on midfield (unless it's on a special talent like Camavinga) before we see what we have in younger midfielders. We won't have much money over the next few years and I'd prefer to use what we'll have on improving defense and find a good goal scorer and maybe another winger depending on how Fati, Trincao and Barca B players (Konrad, G. Maia - don't expect them to stay at the club longterm but who knows) will develop.
Personally I believe our future is not as bleak as most people think. Maybe I'm too optimistic but I think we have some youngsters we can build around and over the next 2-3 seasons we should see who amongst them can stick around longterm. There is still a lot of work to be done but I believe we've at least started to move in the right direction (as long as we won't make another big mistake and spend 100m on Lautaro
). A few years too late but we can't change the past so I'm just looking at a present and future. We won't see a full picture of this rebuild until Messi, Pique, Busi and Alba are all gone but kids should be given a chance to prove their worth now.