The first patent quoted in that lawsuit article has expired [1]. The second patent is still active [2], but is related to a "ramped-key keyboard" (essentially curved), which this new product is not AFAICT.
The third, a design patent [3], is still active, but would appear to only apply to a complete handheld device that includes an attached keyboard, not a separate accessory... Not a lawyer or patent expert by any means though.
I guess we'll see - none of that stops anyone from suing them.
[1]: https://patents.google.com/patent/US7629964B2/en?oq=7%2c629%...
[2]: https://patents.google.com/patent/US8162552B2/en?oq=8%2c162%...
[3]: https://patents.google.com/patent/USD685775S1/en?oq=D685%2c7...
I can't think of any of their design patents this would interfere with. There's a small chance of some internal mechanical or light guide related patents, but that would be pretty unlikely. Even more unlikely would be BlackBerry having anyone around still that would even know what to look for.
https://www.pcmag.com/news/ryan-seacrest-invests-in-typo-iph...
https://www.cnet.com/tech/mobile/typos-hardware-keyboard-for...