It mentioned see u next spring tho? So like s2 end...meaning there's should be s3
tbh I had some hopes as well but unfortunately after doing some digging about the "see you next spring" subject it was about the 2nd volume compilation of the chapters for the comic (it only had 1 volume released so far) with the unfortunately abrupt ending being the conclusion to the 2nd volume with maybe some extra stuff limited to the release if lucky.
The place that releases the chapters said end/finale while I think the author's thing said it was unfortunately discontinued if machine tl is correct so that's two extra nails on the coffin
the comic release page says the updates have ended so we'll have to enjoy the juicy spoilers for the novel version instead