I've already pre-ordered the S10+ and can confirm that they really have the said feature enabled. A few months back when everything was just mere speculation, I didn't believe that they would be able to really integrate the wallet into the said phone. I don't know if the Knox counter would be able to sync with the said wallet, because if so, this will get hackers a hard time messing around getting over with the said security feature Samsung is notorious about. However I wouldn't bank largely at this to cause some hype for bitcoin and crypto, as the hype is still somewhat centered on the device itself. Also, most premium smartphone users won't even care with what's in their phone at all, as long as it's the latest and works.
How about the other two lower types of S10+ (S10 and S10e)? I cant afford to buy the highest type S10+, if the S10 also bring the same feature in case of the crypto wallet then I think it is the most affordable price.
Another question comes to my mind, is the features available all over the world. Talk about Samsung, my country is always get the lower Specs in case of the Processor. It is built in Snapdragon 855 in other countries but it will be only with Exynos in my country. Need to wait for a complete review from Indonesian user (especially gadget reviewer).