It's over, Android is finished. With Google parting hands with Motorola and abandoning Nexus all together (Google Play Edition phones will take over), the consumer is entirely dependent of consumer-oriented manufactures like Samsung. A black day for Android, a good day for Samsung its monopoly.
Nexus phones/products have always been made by external partners (HTC, Samsung, LG, etc...), none of which have ever been Motorola. Why does the Moto sale affect the Nexus line?
There are Google Edition devices from many manufacturers. Just keep those coming. It seems unlikely they would all choose to discontinue. Surely Google provides incentives.
You have a point and insight. This is critical to a lot of Android users. I sort of believe what you said because other sources also implied Android's head is gone and it's under ChromeOS now. we can imagine what will happen. I tried the ChromeBook for a second, even the sellers don't like it. Other than lock users to the Google platform, I don't see any value there. Really sad if what you predicted is true.