Lena Miculek leaked a new product on Instrgram which which was quickly taken down, but not before some people got screenshots. Lena is the daughter of the famous Jerry Miculek, one of the fastest shooters in the world. Not only is he fast, but he's accurate. Lena undoubtably benefited from her father's genes as well as his instruction. She is a competition rifle and pistol shooters sponsored by SIG which means she gets access to guns before the rest of us. That apparently includes preproduction models. From the screenshots of the video (unfortunately removed) we can see that the gun is what you would expect from a gun named a P365X Macro.
It's an upsized P365 with a taller grip and longer slide, accepting a 17 round magazine. It certainly doesn't seem to be as slim as a normal P365, but it looks smaller than a P320 Carry which is likely the closest comparable gun in the SIG lineup. The specific model she was testing has a ported barrel and an optics cut. It appears she was shooting a version with the rear sight plate installed, but you can also see another pistol with a SIG red dot mounted.
I'm guessing both Sig Sauer and the SIG Academy were none too pleased about this product release since the video was quickly removed and so far nobody has come forward with a screen capture. Manufacturers really don't like having new products leaked she probably received some nastrygrams from SIG about it.
You can see discussions on SIGTalk, SIGforum, and Reddit about the leaked Macro: