Well Ramos made a lot of Arab money already in France and maybe like you said, no need to make more, just go back to where it all began. Perhaps after that he will retire to Arab anyway, why not?
He's the enemy because of Real but as a player, no matter the club, I always feel sad when their journeys don't end well. So it's nice so far to see this happen. Hope the fans don't mind
If you look t the level of rivalry and supposed hatred between Sergio Ramos and Barcelona, and Lionel Messi in particular, I'm about the hostility in every match they played against each other which often leads to physical bruises of intentional gesture and always unremorseful about awful tackles that could cause a career threatening injury, you'd presume that Messi and Ramos would never have any respect for each let share a dressing and be highly professional about it as though they've never being on extreme opposing sides of heated rivalry.
There have been some speculations about how Sergio Ramos isn't being welcomed back well by Sevilla fans, I guess probably due to their history while he was at Real Madrid, but Sevilla as a club right now are in total disarray defensively since the beginning of the new season, If there any defender out there that his level of experience at all level could help them, even if it is mean to be just within the dressing room, Sergio Ramos by all means is one of such players.