For the most part, no. Manga creators usually want to deliver a coherent and focused story without the distraction of filler episodes. This helps maintain the integrity and appeal of the series.
Filler words also play a role in the development of the narrative voice. An omniscient narrator might use different filler words compared to a first - person narrator. The choice of filler words can also change over the course of the novel as the character grows or the situation changes. For instance, a character who becomes more confident might use fewer filler words as the story progresses.
In novels, filler words can also be used for character differentiation. A nervous character might use more 'um's and 'ah's compared to a confident one. They can be a subtle tool for characterization. Moreover, in some cases, filler words can be used to create a regional or social dialect. For example, certain words might be more common in a rural setting's dialogue, which can help to paint a more vivid picture of the world in the novel.
The bleach novels often expand on the relationships between the characters. For example, they might show more of the bond between Ichigo and his friends in situations that were not covered in the original anime or manga. These novels are a great addition for fans who want more Bleach content.