i think it looks pretty good, but there are some things in the trailer that i'm not sure about.

• they showed a lot of pikmin types, i think all of them from every game plus the new ones? this is a worry of mine unless they made enough different areas to make you feel like you don't need every type on every expedition.
• still not sure how to feel about the dog
• really glad they're bringing back caves, but the pikmin 2 versus mode-esque battles seem weird
• the night expeditions seem sort of interesting, curious about what purpose they serve
• not sure how to feel about the upgrade shops and currency, hope they do it well

overall, theres a lot of new stuff and returning features that were missing in pikmin 3 for us to be excited about. seems like they want to go more of an open world, choose your own adventure style of progression in favor of how in previous games you had to defeat x boss or get y treasure to unlock a new area.

i just hope its longer than pikmin 3 mostly