This is the same company that released the Wii U with 8GB and 32GB and the Wii with 512MB (lol). Nintendo don't give a fuck if you want to download big retail games you're going to need a large memory card. 

Nintendo's own games are small anyway, don't see that changing on NX regardless of what the format is. 32GB is nothing for 2017 and will only get cheaper as 2018, 19, etc. goes on but most Nintendo games will fit just fine on 4-16GB cards. 

Even as a propietary vendor (doesn't even have to be that propietary), Nintendo would be ordering in volumes of tens of millions at a time. The price is going to be cheap.  

I always thought we will have revival in end of September or early October.

Chirping in here because I covered this topic on another thread, but Macronix, Nintendos propietory ROM manufactuer, announced a while ago that they'd start on a new (32nm) production process and would be able to deliver 32GB ROM carts at the price of a regular BD for Nintendo.

So it seems like 32GB as the new standart cart size is not only possible and comparatively cheap, but all but confirmed by the manufacturer itself.

Wow didn't know that, so 64gb from 3rd parties is definitely something that can happen, without being "n64 cart expensive".  

makes sense to me

Your first point I don't think is applicable because optical discs were cheap to make and downloadable games were not the norm for wii. The wii u for example  has ample storage for a few games in the 32GB model and even about 1 game on the 8gb model as most wii u games are so small. If you look at the macronix site you can see;

http://www.macronix.com/CachePages/en-us-Product-ROM-default.aspx#128Mb

They list roms in bits not bytes as you can see as capacity is listed in megabits 'Mb' not megabytes 'MB'.

You say 4-16GB I would say 256MB to 8GB at launch with 16 and 32GB cartridges coming much later if at all.

So when 32GB and 64GB carts were mentioned on leaks they mean bits not bytes which is 4GB and 8GB for maximum capacity at launch.

Again this is not really debatable its so obviously won't be 32GB or 64GB cartridges at launch. There is a history of Nintendo fanboys pretending somehow the cartridges were going to be much larger than they ever were. Partly because of a lack of understanding of the difference between bits and bytes but mainly the hype factor. As time passes reality hits in. Take the wii u for example at the beginning people were saying it had something like a 800/900 gflops gpu, then it was around 500/600 gflops then for a long time it was decided it was 352 gflops but now the final reality is 176 gflops. It seems you can never go too low when it comes to Nintendo specifications. 

The biggest android and ios games I think are 2-3GB in size so 4 or 8GB is going to be more than ample for the NX.

Just reveal this thing
With Sony and MS in the trash bin this is gaming's last hope
I expect them to go into the bin as well but hey there's 0.1% hope

No, Wii U is much, much weaker.