Why does everyone act like the mere existence of a 4.7" or 5.5" phone causes all other phones to disintegrate?
The smallhanded amongst us can rest assured that the 4" will still exist the next day. In fact, it will just get cheaper. Sure, if and when it gets updated, it probably won't get all the bells and whistles, but that's not because it's 4 inches It's because it will be considered the less desirable budget option and will need to reduce its price/feature set in accordance with the lower demand.
The smallhanded amongst us can rest assured that the 4" will still exist the next day. In fact, it will just get cheaper. Sure, if and when it gets updated, it probably won't get all the bells and whistles, but that's not because it's 4 inches It's because it will be considered the less desirable budget option and will need to reduce its price/feature set in accordance with the lower demand.