Really unrelated because of location. The phase 3 of GF3 is almost certainly for the lower priced model. They are building that now. They will not introduce it until they can build it, because in China it would hurt demand for the Model 3. But the moment they can build them, it will come out, and those excess Model 3 will be moved to other markets. Also, it probably won't be $25k (dollar equivalent in China). It will probably be $30k before incentives.Somehow I have a feeling you will not see the 25K model until capacity caught up with demand for the S3XY + Cybertruck.
At that point, I personally think Tesla will drop the price of the Model 3 and export heavily to neighboring markets like Australia, Korea, Japan etc. They will still make plenty of money on it at the lower price.