There is a Midrash that explains that this worlds serves as the "engagement of Am Yisrael with Hashem" and that the world-to-come will serve as the marriage itself. See Yechidus, Eve of 17th of Shevat, 5745 (1985). However, the Rebbe explains that the Torah is the "bride" and Am Yisrael is the "groom".
In the comment-section of my previous question, @Dude gave a wonderful insight to this. Namely, that the "marriage" was "never completed with kiddushin and Nissuin and only the Tnai'm was made and those aspects won't be completed until Moshiach comes".
My question is: are there any mefarshim that explain that the metaphorical marriage between Hashem and us was never completed with kiddushin and nissuin, and that that will only be the case when Moshiach comes?