We are seeing many sales on MB 12. Update is nigh?
I don't think the sales mean anything, except that retailers are trying to move stock of a 2 year-old product, before a possible release that they're guessing may be soon (like WWDC 2019 in June).
Now we need someone to leak Apple's in-house CPU roadmap and we could overlay the 2 charts
It's interesting that the chart says "Limited" for Q2 Ice Lake Y, a 10 nm part. It's possible that "Limited" run will be for Apple for the 12" MacBook, just like i5-8210Y Amber Lake is a "Limited" 14 nm part for Apple for the MacBook Air.
One thing to note though is that i5-8210Y Amber Lake only scores about 8000 in Geekbench 4, being a dual-core part only. That roadmap states the "Limited" run of Ice Lake Y in 2019 Q2 would also be dual-core, and I'm guessing it would be with performance in the same ballpark but perhaps a little higher than i5-8210Y, in the 9000 range. That would be a good update for 2019 to the fanless MacBook line.
However, my 2017 iPad Pro 10.5" already scores about 9600 in Geekbench 4, and the 2018 iPad Pro 11" gets 18400 (!) in a similar thin and fanless form factor.
I'm thinking if Apple does update the 12" MacBook in 2019, maybe it could be the last Intel 12" MacBook that Apple ever releases. Then in 2020 they could release an Apple ARM based fanless MacBook. Or I suppose, the could release a quad-core Y-series Intel MacBook, using 10 nm Tiger Lake, as a last Intel hurrah.
In this scenario, my 2017 16 GB Core m3-7Y32 12" MacBook could be my last Intel MacBook. I do need a Mac to do some stuff, but I'm needing it less and less these days, and the stuff I do on-the-road with a MacBook is pretty light so my 2017 Intel MacBook ought to last me a long time. Furthermore, I'm thinking that by the time I upgrade, it would likely be to an Apple ARM machine, with a good chance it would be to an iPad Pro. Even now, my main non-iPhone mobile device is my iPad Pro. The split of usage between my iPad Pro vs. my MacBook is about 85% to 15% respectively. Even if I do get another MacBook, by the time I actually need to do it, I'm thinking Apple would have already switched to ARM. As it stands now, they could actually emulate Intel for legacy software on their A12X and still be about as fast as the fastest 2017 Core i7-7Y75 MacBook.
tl;dr:
2019: Apple releases dual-core 10 nm Intel MacBook
2020: Apple releases ARM MacBook that's twice as fast, or while emulating Intel is about as fast as the 2019.
Or else Apple releases quad-core 10 nm Intel MacBook in 2020 and then later releases an ARM MacBook.
Some time later, Eug buys an ARM machine, but it might not be a MacBook at all and instead could be an iPad Pro.