Does Apple ship with "Extreme" mobile chips now? Cause that's all the i9 is after marketing, right?

Apple mentioned something on a special "extreme" iMac model during their Mac Pro apologizing meeting last month. I'd assume i9 would be the right fit: something like 22-core Xeon would've been too expensive but single i9 would likely be just right.

Those CPUs in the leak have TDP values of over 100W. Not very suitable for slim laptops like MBP. Or was there something for mobile market as well?

There was no discussion of a mobile SKU that I could see, which is what made me wonder when I read the news. If you look at Intel presentations, and over the years I've looked at a lot of them, they tend to present 'complete' families of their lines. So the budget sku, the high power sku, the low power sku, the enthusiast sku, etc. the ones you would put in laptops seemed to be missing.

There are probably more than one possible explanations about that, but one that has happened in the past has been a vendor has asked for (and received) Intel's commitment to give them all of the early production.

And so I thought "I wonder if this is the part in the rumoured Surface Pro 5?" but it wasn't because Microsoft announced the Surface Laptop. And now we here "ooh, big Apple announcement coming up." and I note that the last Macbook pro announcement was underwhelming to say the least, and Microsoft is making annoying[1] noises about how their laptop is faster/thinner/better than anything Apple makes, and that makes me wonder if Apple decided to do something about it and make an update to the Macbook pro that they knew No one else would be able to beat because they bought exclusive early access to the chip that they use.

Entirely speculation at this point of course, and I will not be shocked to be completely wrong here. But I also wouldn't be surprised if this is what they announce.

[1] Annoying to Apple but fun for consumers as they get more choices and the competition keeps everyone on their toes.