Questions for manga readers. (Potential spoilers)

FreshSalmon827 said:
I’m unaware of how far ahead the manga is than the anime but do we ever see Yaeka any older than she is in the anime?

Whilst she is undoubtedly adorable and the show is immensely wholesome. I think it would be really interesting to see how Kirishima and Yaeka’s relationship would develop as Yaeka gets older, when she can start to understand the work her family does and what Kirishima was like before he became her babysitter. Perhaps in her rebellious years how will she feel about Kirishima and what would it be like for her to get her first boyfriend? Will Kirishima get a girlfriend/wife and start his own family and how would Yaeka feel about that? These are the things I’ve been wondering recently.
As for me I'm quite interested about this mf mashiro.

If the manga hasn’t developed as far as any of that do the manga readers think there’s any hint of that happening or most likely will the story be solely contained within this period of their lives?