It seems that they've somewhat changed their minds as their Klingons have a TNG aesthetic. Also, there's a short scene with a bit of onscreen "Klingon" (which is actually English written using a {pIqaD} font). The Klingon actually says a short sentence which doesn't sound like real Klingon to me, but maybe it is and I just don't understand it. In fact, it reminds me of K'Tuvma's voice, which makes me wonder if it wasn't a sentence fragment lifted out of Star Trek Discovery.
The scene starts at the 10:14 mark if anyone's interested:
Let me know if you figure out what the Klingon is supposed to be saying.
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De'vID