Charjabug and Vikavolt are definitely related to Grubbin. The latter really gives off some Mega Beedrill vibes to me. They're surely a breath of fresh air for what I am assuming is an early route Bug Pokémon. Charjabug looks like a smol minibus to me. It's merely how I feel when looking at it, that's all.
Drampa may not be our Pseudo-Legendary, since they're usually kept a secret until the game's release. I reckon it will be another new and native Dragon species to the new region, just like Axew, Fraxure, and Haxorus. That's merely my experience from recalling that Axew and Haxorus had been revealed before Black/White were released, and those were not confirmed to be the Pseudo-Legendary of Unova. I'm already coming up with some amusing nicknames after getting Drampa's name implanted into my mind, and they're all related to grandpa.
Bruxish is most likely our common Water Type Pokémon, akin to Basculin. I would keep my expectations for it's viability neutral, since Basculin does not evolve. I'm getting some Equestria Girls vibes looking at this thing's colours and Ability, since they immediately remind me of each of the Dazzlings the more closely I look at it. I hear it has an Ability that shuts down priority attacks? This can give it a really good niche compared to past generic fish Pokémon.
Cutiefly is our first Bug/Fairy Type so far. I'm sure it will evolve into something beautiful. We could do with more majestic insects this time around. I'm reminded of the Love/Soul Bubble enemy from Mario & Luigi: Partners in Time for some reason. It would be hilarious, awesome, and annoying at the same time if this Pokémon could learn an attack that revives your fainted party member. Even if it has just 1 PP, it would completely wreck the metagame. But alas, a man can still dream, right?
Togedemaru is obviously our Pikaclone for the new region. Not too much for me to say right now, since it's an average regularity to have a Pikaclone at this point. To be honest, after a quick thought, Electric/Steel has the potential to give this thing a defensive niche over it's electrical rodent brethren.
Tapu Koko is definitely my go-to Guardian Pokémon of this region. It is definitely going to be miles better than Dedenne. With a combo that's bound to be treated even better this generation, this beast could definitely be a nuisance to threats like Azumarill, Mega Pinsir, and Talonflame.
And it looks like Zygarde 50% can now transform into Zygarde Complete. It's Ability must have been retconned, since the Type Combo probably did no favours for it. It has the stats to take hits much better than it's 10% form, so using it shouldn't be a problem, unless the obnoxious power creep becomes far more prevalent this time around.