I don't know if it's popular enough? When I saw all the volumes on tMnR's twitter, I want to buy some but I don't know if she's selling enough to be transposed in anime; or are there more conditions?
Also, noob question, is it serialised or is it considered as a doujin?
She is indeed serialized in the Yurihime.
About the "popular enough", there was a sort of poll about Yuri manga popularity in Japan (made by a yuri website), and Tatoe is already pretty popular in Japan (I think it was already ranked 13, when NTR was only ranked 20). For a pretty new title (knowing that this month, it's the first year publication for marriage), it's already really really nice.
tMnR is also pretty popular already because she is EliUmi goddess, and she draws doujinshis every comiket for quite some times now. About her manga, even Nakatani Nio recommanded it in an interview, so...
So about the popularity, yes, this manga is already a hit. Is it worth buying it? Hell yes.
After, there are probably more conditions to be transposed into anime unfortunatly. Citrus and NTR were transposed because you had quite some material in it that could potentially please people. I think it's possible, but they need to see some potential in it for anime adaptation. Depend if the drama part can please a lot of people or nah.