It is rumoured that Messi's father has met Barcelona already but there isn't any agreement for Messi to return for now. However I'm quite confident that Messi is looking forward to returning home.
He has been doing a really good job at PSG so far. He has impressed people with his performance for his new team as well. However it still looks like he doesn't feel himself belonging here. He doesn't look willing to extend his contract either. In this case I would also like to see him back at Barcelona. Maybe Xavi is building a different team now but Messi would be welcomed happily there anyway.