The Note 10 will get at least 4.2. It has only been out in the US for 3 or 4 months.
Samsung is still supporting the original Galaxy s line of smartphones, so to think they will stop now is just bad thinking.
The zoom from Motorola is only stopping support for it due to the lack of sales that they saw overall. The zoom is also big in the developer community, so there is always support there.
Besides, with the quad core processor and 2gb of ram, the note 10 should see updates for at least two years to come.
That is as long as Google keeps making updates for Android.
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