I figure Kara Tur, Zakhara, Maztica, and Laerakond, and maybe Shyr on Abeir (those 5 have been the only FR Continents besides Faerun properly explored & detailed for FR, (Achrome, Katashaka, Osse only get rare tidbits) might get at most a page each, and if we are really, really lucky a map (and if the book doesn't have a map, maybe Beatle's & Grimm will if they do an FR box set thingy)
Shyr despite being on Abeir might actually be the most important to Faerun because Shyr is the one that switched locations with Faerun (except Tymanther which was originally on Laerakond), Shyr is the Abeir equivalent to Toril's Faerun.