The Redmi 6A will be available with double the storage (32GB) and 3GB of RAM. Of course, there's a slight bump in the price - from CNY 599 ($95) for the 2GB/16GB variant to CNY 699 ($105) for the new upgraded version. However, the price is still a tad lower than Redmi 6's base variant with 3GB of RAM and 32GB of storage going for CNY 799 ($125).
The device is already listed on retailer JD.com's website and you can pre-order it now. Keep in mind, though, that this particular version comes only in gold color, at least for the time being.
Source (in Chinese)
Yeah, Xiaomi's Redmi lineup is rather confusing these days, with a single generation could mean plenty options (Redmi 3, 3s, 3s Prime, 3X for example. Not to mention Redmi Note 3 that comes in 2 variants). But at least it's not as confusing as Huawei...