Celtic is preparing for a busy summer transfer window, with significant changes expected in the squad. The club is likely to sign new players to enhance their team, but there are also concerns about key players departing. Notably, Reo Hatate's future at Celtic is uncertain, as he has fallen out of favor with manager Martin O'Neill towards the end of the season. This situation has raised speculation about his potential exit from the club. Historically, Celtic has seen key players leave during the summer, and this year may be no different. Previous transfers have included Nicolas Kuhn moving to Como FC and Matt O'Riley joining Brighton & Hove Albion. As the club looks to rejuvenate its squad, the possibility of Hatate returning to Japan has emerged. Reports from Japanese media suggest that Kashima Antlers are interested in acquiring him to strengthen their midfield. This unexpected turn of events has caught many off guard, especially considering Hatate's previous high regard at Celtic. However, his recent performances have raised questions about his form, making a move back to Japan seem plausible. Fans will be watching closely to see how this transfer saga unfolds as Celtic navigates the summer window.