There is sometimes a concept in halacha of two opposite categories but sometimes something can fall in the middle of the two categories but be neither here nor there. As an example, the Gemarah says (Sanhedrin 58b) that an eved kinani is out of the category of a gentile but has not entered the category of a yisrael. I happened recently to be learning a few examples of this principle and was wondering about trying to find more examples but apparently a list has already been complied by Rav Moshe Adler. This idea may be employed in the world of hashkafa as well. In the book by Aviezer Revitsky, "Messianism. Zionism, and Jewish Religious Radicalism," he points out that both Kookian Zionism and Satmer anti-Zionism both stem from the idea that a Jewish state is only applicable outside of the boundaries of golus and hence it must have to do with the geulah. From there they take opposite approaches either to reject the concept of Israel being a Jewish stare before the Mashiach comes or to view it as the beginning of the geulah process. The author suggests it may be a middle ground, it is not the normal state of golus to have a Jewish state but it is not the process of geulah yet.
One of the examples of the middle category is how the Radvaz understands the level of a ger who has done a bris milah but not yet gone through the tevilah in a mikvah. He says in this case as well, the "ger" is no longer a gentile but is not yet a Jew and therefore he has dinim sometimes like a goy and sometimes like a Jew. The Radvaz says that he will not make wine יין נסך. It is hard to know when it comes to the status of something in the middle for which laws it figures in category 1 or category 2.
Rav Yosef Engel suggests (חוסן יוסף #69, Gilyonay Hashas Yevamot 47) that the two parts of the act of gerus, milah and tevilah, reflect these two levels. The milah is done to remove the status of a gentile and the tevilah is done in order to give the status of a yisrael. This line of reasoning would fit very well with the Radvaz. The prospective ger that has done milah is no longer a gentile but has not done tevilah yet in order to enter kedushas yisrael. It is interesting that the Chelkas Yoav (volume 2 #8) assumes diametrically the opposite. He says that if only milah is done the person still has the full status of a gentile. However, if tevialah is done before milah, then the person does have somewhat the status of a Jew and in fact is obligated in mitzvot. See more about this topic here.
The Gur Aryeh Vayigash (46:10) asks why Chazal say that Klal Yisrael were prohibited to marry their relatives after Matan Torah, we should say גר שנתגייר כקטן שנולד דמי? He answers that כקטן שנולד דמי is said only for a ger that comes voluntarily not for Klal Yisrael that the mountain was placed over their head. He clearly says the rule of כקטן שנולד דמי does not apply to the gerus of Matan Torah. However, the Meshech Chachma (Vaeschanan 5:27) says the idea of כקטן שנולד דמי is derived from the gerus of Matan Torah itself from the fact that Bnei Yisrael were not told that they were prohibited to wives who may have been prohibited relatives. (For a collection of the sources to the idea of כקטן שנולד דמי, see Rav Asher Weiss.) I subsequently found numerous sources that point out this contradiction, see Rav Yoel Amital and Rav Meyer Yisrael.
Rav Yosef Engel (Beis Haotzer klal 1 #8 questions if the Avos had the status of Yisrael already before Matan Torah how was there gerus at Matan Torah? In light of the previous discussion maybe there is a middle ground. Before Matan Torah there was a concept of a separate Jewish nation that in it of itself had a concept of gerus to join as Chazal employ the terminology of gerus even for the people Avraham was teaching. The Jewsih nation was not in the category of a mere ben noach. On the other hand, there was no formal kedushas Yisrael and that is established only with the gerus at Sinai (see similar idea in the גרנ"ט כתובות סימן כח ויבות בימן יא.) וצ"ע.