I don't know about the rest of /vp/, but playing around with Super Secret Bases in ORAS has gotten my hyped as all hell for how the eventual DP remake's handle the Sinnoh Underground.

>big persistent online subworld with bases littered everywhere
>glorified online lobby where you can trade, battle, and chat with other online players
>More robust bases in general
>Online quality will be a huge jump from Gen 6's PSS due to it being played on the NX