You can say Assassination Classroom replace Bleach .
Think it sells even more than bleach now , Naruto going to be problem to replace .
Sales-wise Assclass is a monster, but genre-wise I see Assclass as a comedy more than a battle shounen? Unless it did some slight genre shift since the last time I read it (which was quite a long while ago).
Bleach was overtaken by Kuroko and Assclass a long time ago. But I suppose it's still in the top 10 best-selling series of Jump itself.
Toriko passed its prime a while ago. Nowadays it's only selling a bit above Gintama, and that's after Gintama had a long decline in sales.
I suppose if you categorize it as 'battle shounen' in the same vein as the Big 3, Toriko can't replace any of them because even with marketing push it doesn't reach the same level in popularity and sales. I think a major factor is that Toriko isn't appealing to females.
In a sense I also wonder if the 'battle shounen' is a necessary genre anymore. It's been done to death by the Big 3, and recent shounen manga seem to be successful due to different aspects rather than through drawn out power level battles.