According to this Swedish movie site Beck fortsätter växa: 2 nya filmer spelas in i vår

Beck-universumet fortsätter att expandera när inspelningen av två nya filmer, "Beck 55" och "Beck 56", drar igång under våren

Source: https://www.moviezine.se/nyheter/beck-fortsatter-vaxa-tva-nya-filmer-spelas-in-i-var

Short English translation two more Beck are in the making Beck 55 and 56 goes into production this spring 

will see if this season 10 or 11 depending on when they will air if airing in January 2027 season 11, if airing before dec 31 season 10