Sony always tried new stuff in their camera history:

Sony 70-200mm GM II Lens at BHphoto, Amazon, Adorama. BuyDig. FocusCamera. FotoKoch DE, Calumet DE, WexUK, ParkUK.

ePhotozine published the full review and concluded:

As cameras have become more and more demanding, needing sharper and sharper optics, so lenses have become better and better. There can be no better example than this new Sony lens – faster, lighter, more compact and with higher performance than what was already a really excellent lens. If we add to that the very nature of the 70-200mm lens, so very versatile, covering portraits, architecture, flower close-ups, close up sports, landscape, animals and many other possibilities all in an easy to use package, we have a powerful offering indeed.
A great lens at a par for the course price and a comfortable ‘Editor’s Choice’.

Brigthtin Star seems to be a rebranded version of the Mitakon lenses. You can find these lenses on Amazon US, Amazon DE, Amazon UK.

Marc Alhadeff from SonyAlphaBlog reviewed three of them:

Brightin Star 50mm F0.95:

The Brightin Star 50mm F0.95 (389$) is a typical F0.95 lens the provide super smooth bokeh, decent sharpness wide open and excellent as of F4 with a very good color, rendition and very good build quality
The Brightin Star provides very poetic and nice pictures for portraits or for object details with lot of background blur
The key difference with the other F0.95 lenses is the price: it is 2 times cheaper that other F0.95 while providing very similar performance !
The lens has some weaknesses : not circular bokeh balls with aperture closed down , more vignetting and situation than competition and lower resistance to flare
But for 389$ it is a bargain

Brightin Star 55mm F1.8:

The Brightin Star 55mm F1.8 (116$) provide globally very good portraits with very good bokeh balls, good background blur, very good color rendition. Sharpness could be a bit better wide open but for 116$ is does as good as the Sony 50mm F1.8 while having a better rendering for portraits

Brigthin Star 23mm F5.6:

The Brightin Star 23mm f5.6 (100$) is a very nice , light and compact pancake lens. Sharpness is very good to excellent on most of the fields but with only average corners. The color Rendition is very good
The main drawback is the bad resistance to flare , the average corners , the slow aperture of F5.6 (if you like small depth of field effect) and of course no AF

The new Tokina 500mm Reflex lens is available for preorder at BHphoto (Click here). Jason Vong tested it and actually likes the lens a lot:

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Yesterday Tokina announced this new 8mm f/2.8 fisheye APS-C E lens. Christopher Frost has an exclusive review of this lens:

This new lens can be preordered at BHphoto and at TTartisan (worldwide shipment).

Marc from SonyAlphablog tested the lens and concluded:

The TTArtisan delivers nice portraits with a dreamy atmosphere and better results than a lens like Samyang MF 85mm F1.4 MK2, however its heavy weight and issue of focus shift makes it difficult to recommend vs eg a Samyang 85mm F1.4 AF at same price which is much sharper and has AF, unless you want to exclusively shoot at F1.25 with this lens

Preorders: Sigma 20mm FE at BHphoto, Adorama, FocusCamera. Fotokoch Germany. WexUK.

Here we have the Sigma 20mm autofocus tested with the Sony A7rIII:

Mobile01 posted these nice images of the lens mounted on the Sony A7rIII:

And here the lens on the Sony A7c:

https://www.instagram.com/p/CZwgGjcK-b1/