Some of those screenshots make my eyes bleed, particularly the one with the multiple-windows with one of the windows having the painful app selector that pretends to be a window selector. When will we see Android 7 on a third party device?
We just analyzed Android manufacturers [1] and found they tend to update in two groups: 3 months after release (Motorola, LG, HTC) and 6 months after release (Samsung, Sony, Huawei). This of course ignores Nexus devices by those manufacturers. [1] https://www.apteligent.com/2016/08/apteligent-data-report-an...
If a higher percentage of Samsung devices are updated (graph keeps going up), then that would imply you were more likely to get an update.
The graph currently emphasises the first mover speed (which is affected by carriers, not just manufacturers).