There is currently an ongoing discussion among Pentaxians as to whether these upcoming 50mm f/1.4 prime lenses are really one and the same on the inside – the Tokina:
And the Pentax:
The Tokina will ship in summer 2018, while the Pentax, originally announced for September 2017, was pushed back to September 2018, so their release dates will also be close.
For context and comparison, here are the recent Sigma and Zeiss lenses with the same specs:
What do you think? Let the rest of us know in the comments!