I'd just like there to be more focus on the management and whilst retaining the ability for people to make custom assets, not have that as a necessity to build a decent-looking park (You shouldn't have to rely on Steam Workshop)
Whilst I consider myself reasonably creative, Franky I don't have time to go about building an intricate facade for a shop. You can criticise RCT for it's basic building structure system all you like, but it was quick, intuitive and (most of the time) enables you to create good-looking structures and buildings without spending hours pouring over details.
I don't really play Planet Coaster anymore for these reasons. It's far too "sandbox" for my liking. You have a vast, empty plot of land and an insanely wide array of building/scenery components to chose from which makes it a) very daunting and b) very time consuming. In RCT I could build an entire park within a day, and have everything looking good, functioning and with an element of challenge (I rarely played sandbox). On planet Coaster however you're looking at weeks to even months to do the same. It's just too much and needs bringing back down to earth a bit. Possibly release the base game as such, and have expansion packs for the people who have time to spend pouring hours over the design of a toilet.
The coaster builder is fine, I think it strikes a good balance between being intuitive but not overwhelming (although I might still simplify it further and utilise AI to smooth things out and heartline etc) and the game camera works fine too. So the fundamental "coaster building" bit already has a good foundation.
I'd like it to be more in the vein of the original RCT series with a proper, challenging campaign, and most importantly have improved performance & weather effects. I loved watching the guests open their umbrellas when it rained and hear the sound effects associated with that. Even RCT3 did a good job with weather, which to this day still makes it fairly attractive to look at!