The speculations of Messi's return to Barcelona are now hitting up and it seems likely that a move can happen in the summer as Barcelona President has mentioned that the club is talking to Messi's camp and discussions taking place already. I think Barcelona is also putting in place measures to satisfy every financial fair play rules if Messi is to join eventually.
Xavi is still trying to hold himself. There are some things that must be done before barcelona will able to bring back messi to its old club again. I meant FFP is still become the main problem for barcelona right now. Messi shall wait until barcelona will able to sell some players like ansu fati which is useless for the club. The messi's transfer can't happen instantly caused by barcelona is not having a good financial condition at this moment. Barcelona has responsibility to fix its financial first.
Just because barcelona's president already contacted messi and it didn't mean if messi can come back easily to barcelona.
Barcelona’s vice-president Rafael Yuste has said the club have been in contact with Lionel Messi about a possible return.
https://www.theguardian.com/football/2023/mar/31/barcelona-lionel-messi-contact-return-psg