If you mean, if you subscribe will there be more items, no. There will be more cases, which can mean more favors, which results in more items and/or cash.
Another bonus to subscribing is you can travel to other cities.
The other cities have different factions, which sell different gear that is not available in NY.
//insert obligatory plug here//
subscribing also means you can join an agency and get the help of your fellow detectives for all sorts of things, like getting the best deal on Faction gear.
Thank you for the information. I have just got my first connection. Its with the Tailor. This goes perfect since I have Thred analisis. Oh yea im livin this game 25 Casis solved and only 1 failed (that was the first one I did when I didnt know how to play that well).