Huh, hadn't realized Tesla closed that gap to $5K. When the X came out the gap was a lot bigger, more like $8K. Even though Tesla had intended it to be $5K. That'd be the "new" part, I guess, that they overcame after a while? The Y is going to face that, too, even if the FWD aren't involved.
That's crazy talk. They are now explicitly saying it'll be built on top of the Model 3 platform. They'd drop the Model 3 price if they could pull off the arcane wizardry of even just matching the M3 base price, because they'd have to be substantially dropping the underlying platform's cost to do that.
EDIT: That's getting into Gen 4 pricing territory, mid-to-high $20K's for the base sedan.