I'd love to attend of course

Not sure if I can, but I can defo give it a try !
Also, about Nintendo... It is far from certain that they would sponsor the event. They are more and more picky over the years about copyright and intellectual property cases (did you hear about the small Pokemon event that was banned a couple of years ago in the US, the organizors having to pay a fine ? And all the TAS videos of Nintendo games deleted on Youtube...)
We didn't explain this deeply here or on the french forum, but we've been experiencing issues about this last year: Nintendo France prevented us from using the 'world championship' reference on our banner, site and social networks. That's why you probably didn't see many 'SMK world championship 2016' advertisments last year, only 'SMK championships' (well, we still tried to put some discreet 'world championship' ads here and there, where it was pretty safe

But basically, we can't nymore).
To sum this up, they now consider that a real "world championship" of a Nintendo game has to be organized by Nintendo World, otherwise it is not, and you can't use this name...