Canon is really great company, however, it is poor in management of fanboys expectations. When I look at new 1DxII specs I do not see any significant technological innovations. Is this camera better than 1Dx? Answer - yes, of course but fanboys expectations are much higher. Let's take a look at details:
1) Added 4k video - this is substantial improvement and if compare with new Nikon D5 1 DXII is much better as it allows to record in 4k much longer time. Is it big innovation? No, because Canon 1Dc already had this feature. Basically, Canon made available 4k video to general public (not many people were able to buy 1Dc). But this was expected.
2) All points focusing at F8 - very good feature (especially for BIF). Is is big innovation? I think that no
That's natural improvement in technology. Evolution but not revolution.
3) Bigger spread of focus points - very good feature but also evolutionary. Also, fanboys expectation was that number of points could be higher as in competitors products. From practical point of view maybe it will be sufficient this number of points if they are properly spread and AF algorithm is working really well.
4) GPS inclusion - good, but it was really expected. However, expectation to have wifi transmitter is not met.
5) Increase in megapixels from 18 to 20 MP - almost nobody cares but also expected;
6) Native ISO - very very important feature and everybody had significant expectations (especially by looking at Nikon and Sony products). From paper specs of view Canon failed this expectation, however, we should look from practical point of view. Who is going to shoot with 409,000 ISO????? It is nice feature to try but not usable from practical point of view. If Canon produces clear and usable pictures at 51,000 ISO then I would say that this is really sufficient;
7) Dynamic range - this is important feature and Canon was not very strong in this area. Everybody expected better DR but nothing is said in announcement. I guess many of us will have had big expectations in this area but expectations were not met (but let's wait for actual tests and then we can moan )
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8) Higher FPS - on paper it sounds really good but in practice it will be used only by sports and wildlife photographers.
Canon 1DxII is flagmaship and accordingly all best Canon's technology is included here. I really do not expect revolution from Canon 5DIV - it is going to be better camera, with higher FPS, better AF, maybe GPS. It is going also to be evolutionary but not revolutionary camera. Overall if we compare this Camera with Nikon D5 we see that they are very similar and it is not worth to change system and move to Nikon
If we compare with Sony A7RII we will see that AF capabilities are much better in Canon, however, DR and MP are better in Sony. If Canon would buy Sony sensors and put them into Canon cameras we would definitely have the best cameras in the world. Now we will be waiting for Canon 1DxIII and will still expect some revolution from Canon
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I'm a total Canon Fan Boy. "How you relate to the issue is the issue." 
