Only Samsung employees knows the answer. It would be crazy for them not to update the Galaxy View since it wasn't cheap at launch and it hasn't had a major software update. I could see marshmallow being the last update released for the Galaxy View. I wouldn't say because of the chipset it's using, since Samsung smartphones have the same chipset with a marshmallow update. It's because of the lack of development and popularity.
Why have you decided to stick with the Samsung Galaxy View.