Here I did some research on a lot of the franchises that will be having animes this season and found what bathing scenes will be confirmed and ones that might happen through their source material.

Gakusen Toshi Asterisk (S2)

The first season of this show covered the first 3 novels so since this furo scene down here is in volume 4, there’s a high chance that it will be adapted in this season.

It can be assumed that the 6th novel will make it later into the season so we will probably getting another scene of Claudia in a bathrobe. The anime has teased the possibility of her having a clawfoot tub so I’m really hoping we get to see the bathing that goes in context with this bathrobe scene and get a better view of her bathroom than the minor shots we got last season.

This may be going into a season 3 territory if it ever happens but we do get a shower scene in volume 7. Small chance of appearing in this season but just a heads up.

My Hero Academia

I am not expecting this to make it in the anime since its only gonna be 13 episodes as of now but chapter 71 has an onsen scene. Could be appearing in a later season though. It’s a Shonen Jump title so it will most likely get another season.

Sakamoto desu ga?

chapter 6 has a clothed shower scene so I feel this will make it in since its pretty early in.

Sousei no Onmyouji

Since this is a monthly manga with long chapters, I will assume this series covers 1 chapter per episode.

chapter 2 has some off screen bathing in it so I assume this will be adapted and hopefully we get an extra scene before it actually showing her bathing.

chapter 4 has a male hinoki bathtub scene

I don’t think the episode count is confirmed yet but if it is a 24-26 episode show than we might see this off screen shower from chapter 21 otherwise this is hypothetical season 2 territory.

Magi: Sinbad no Bouken

I didn’t check this whole series but the only thing I could find was this bathing pool scene in chapter 71. Unfortunately I find a really low chance of this being adapted since the series is only going to be 8 episodes and they would have to skip around a bunch to even make it this far.

Re:Zero kara Hajimeru Isekai Seikatsu

This series has a lot of cute girls in it and the only bathing scene I can find is a man bath in manga chapter 12.

Jojo’s Bizarre Adventure: Diamond is Unbreakable

The series has had some great bathing scenes in the past but this part of the series won’t really have any until later on. Judging by how the previous part “Stardust Crusaders” played out it was split into two 24 episode seasons so I will just post what I believe will in this season of episodes we will have.

Not really a bathing scene but we do see the bathtub of Higashikata residence in chapter 272.

In chapter 305, Okuyasu Nijimura mentions about a time he went to a mountain bath so it’s possible we could get a visual representation of the event.

In chapter 320 and 321, we see Koichi Hirose weighing himself when attempting to use the bath.

Hundred

The trailer for this series showed us a furo scene.

and also some towel scene.

Kuma Miko

The trailer shows this series will have a hinoki bathtub scene with a girl and a bear.

Bakuon!!

chapter 10 has a picture of some characters in the bath at a profile segment at the end. This probably won’t make it for not actually being in story but there could be a possibility of them recreating this image in some way.

chapter 12 has an onsen scene which we saw in the OVA but who knows, the TV series could recreate it more closely to the manga, its been done in the past with other series.

Super Lovers

chapter 2 has some guy who took an off screen bath so we might see some more detail on that and chapter 7 has a guy taking a shower.

So all of this is bathing scenes we can expect to see animated this anime season. Do not take this whole list as fact as its all speculation. For all we know these anime adaptations could end up having new original bathing scenes not in the source material or could possibly take these ones out. I did not research every series so if there are anymore potential ones that could be coming this season that you know of please post them in the comments.