Trailer fell a bit flat for me on my first viewing, but after rewatching it a few times I've been liking it more and more.
Really enjoying seeing the actors interacting with each other. 100% sold on Iñaki as Luffy at this point.
Currently feeling cautiosly optimistic for the series and looking forward to seeing more.
My guess for the episodes:
Romance Dawn - Romance Dawn + Alvida + Shells Town
The Man in the Straw Hat - Orange Town
The Pirates are Coming - Syrup Village
Tell No Tales - Syrup Village
Eat at the Baratie! - Baratie
The Chef & the Chore Boy - Baratie
The Girl with the Sawfish Tattoo - Arlong Park
Worst in the East - Arlong Park
Tell No Tales seems to fit pretty well with Kuro's whole "kill everyone so I can live in peace" thing as well as Usopp's decision to not tell the villagers about the battle.
I'm feeling pretty sure that Loguetown won't be in season 1 at this point (no casting announcement for Smoker/Tashigi/Dragon, no rain during barrel scene indicating it has been moved, and no episode title that easily fits). Season most likely ends with the bounty reveal and the barrel scene.