I have to comment again to change my prediction again..... This will continue until the third year ends..
So probably chapter 300 ish (but I hope that it is no longer than that, as @Baba_Yaga_ said..)
Well, now there's Potter to be included in 'capturing' Sirius huh, hope this gets concluded till 300 chapters to say the least. Though the story is great but it's been far too long author. đď¸