yawn we been hearing the samething from the same people, we heard the same thing last year switch will outsell ps4 or get real close yet ps4 blew out of the water.

Yea, we are also hearing from same people that Switch sales will fail of rock and predictions that Switch will be last in NPD sales every month...but Switch continue selling good despite still didnt had big games this year, and from here and when big titles start releasing sales can be only much better.

When do the big titles start releasing though? Smash? In maybe September? Or are you expecting Mario Tennis, Octopath, and Captain Toad to push a lot of systems?

Yes, with Pokemon Switch being advertised etc its going to go crazy.

Smash and Pokemon are both releasing at the end of the year together with Octopath. With that Fire Emblem is going to release this year together with whatever they announce at E3 as most if not all the stuff they show at E3 is for 2018. 

Really big titles are obviously Smash Bros and Pokemon, Smash Bros seems like September release, but started from May Switch has quite stronger lineup in any case than it had until April.

It will be most probably the best seller overall in the BF and XMas season. Domination, I don't know, it depends on how "domination" is defined.

I think you confused win with dominate... Switch will probably win, but far from dominating.

May had DKTF, April had Labo, and March had Kirby. What makes May so much better than April and March would you say?

April had only Labo, but May had DKTF and Hyrule Warriors: Definitive Edition.