The title says it all. This is much like the thread of what you want to see in the game, only more detailed. Some questions are
What do you want to see in the Firehouse?
Do want to free roam in the Firehouse?
What rooms will we see? Egon’s lab, Containment Unit?
Speaking of containment unit, do you want to be able to put the ghost you captured into it yourself? Make the newbie do it for everyone?
This has been confirmed in one of the interviews from way back. The Firehouse acts as a central hub where you can check in on the latest developments Egon is working on, view awards won from various token collection, and even slide down the firepole.
I want to see as accurate a representation of the station as they can portray… given the limitations of the size of the New York station’s exterior whilst working with the interior of the LA Station’s much larger dimensions. Hopefully it’ll be a faithful reproduction… such as having four firepoles… the wooden alarm box which housed the alarm… Janine and Venkman’s offices, the rec room/lab and of course the Ecto Containment Unit. I’d also be hugely disappointed if the engine bay doesn’t have its distinctive green/white tilework. 
I imagine the engine bay will be as shown, and there will be a lab, although it may draw a lot of artistic interpretation. I also imagine there’ll be a communal area where the token rewards are displayed, and again this area might be depicted with a lot of artistic interpretation.
It’d be a nice touch if you were allowed to put the ghosts into the ECU once or twice… but might get a tad repetitive if used too many times during the game’s plot.
I imagine the game will also present it’s own interpretation of the Containment Unit Mark 2, whether it’ll reference RGB is unknown but I imagine it’ll be larger in the game.
I personally want to see a few things. I would like to
See some of Egon’s prototypes.
The Mark II Containment Unit. I wouldn’t mind if it was RGB style.
Hopefully a full layout of the firehouse.
I know some of these have been confirmed, I just want to see if theres anything new some people want to see.
A full layout may not be possible… the LA station used for the interior doesn’t look all that larger in the movie, but LA 23 is at least a third longer than the New York one… so they may leave out a lot of the ones that never appeared in the films.
That is true. Then again, we never saw that much in the movies. I would figure we will see the same rooms as in the movies. I wonder some things. Will they scale the LA one down to fit in the size of NY? Will they just not care about size and do it like the movie and add the things they want to? I guess as long as they don’t show the outside or let you wonder around outside the hq, you really wouldn’t know the proper size. Personally, I would prefer they scale it down to proper size. If you account for RGB, the inside seemed to be in scale with the outside.
That’s what I’m hoping as well, that all rooms seen in the movies are translated to the digital Firehouse.
As for the RGB layout, that isn’t representative of the LA Firehouse, the whole third floor was made up for the cartoon… although probably drew inspiration from the film with having the bunk room be right at the front of the station. However whilst the RGB Firehouse third floor consisted of four rooms, the Lab and Bunk Room at each end of the station, and then a Bathroom and Landing occupying the space between them, the LA station has no fewer than 12 rooms on it’s third floor.