Canon announced a macro lens with LED! They see the impossible!
I don't think that Nikon can follow at this stage ... and they rely on Sony sensors ...
Nikon is also far from being a first choice in the movie segment which has risen to high popularity now.
I reckon that Canon would still have the capabilities to do so. Sony has one major weakness - the pricing of their products.
Canon could easily come up with a FF mirrorless camera around the 1000US$ mark. Sony has completely ignored to FF entry level segment so far.
Even if CaNikon started rolling it would take them at least 5 years to catch up now. How many lenses can they release per year ? 5 maybe ? And Sony has now reached full maturity in the prosumer class and can now venture either up and/or down the food chain.
If Canon comes up with a FF body at 1000$ mark (6Dm2, I presume), Sony will probably simply remind everyone that they still have the A7 and/or A7II. By reminding I mean release another model with slightly updates specs and a pretty competitive price. They already have quite a good cheap set of primes now (28&50&85) so I won't be surprised if they eventually release a cheap-ish body to go with them.
Canon shows that there is development in this direction, while Nikon are completely silent. Unless they've been working on something during the last 2 years and planed to announce it this year. Camera + 3 lenses?
Well if a single bird picture from time to time will do, I would stick with what you've got!
On a FF it will have to be quite a large bird, most birders theses days are using APSc sensors, while FF cameras are better suited to African wildlife and larger subjects.
I'll stick with my D750 and it's similar resolution FF sensor for when photographing elephants!
There's a whole market opened up for no compromise lens adapters however.
It is premature to call the alpha 9 a winner but if it is - well all we can say canikon chose to ignore the segment out of fear that it would hurt their dslr lineup.
After considerable thought it's just too small to be a good sports camera, even though it could do it....
......it's a perfect wedding camera though!