Hi Kyatric,
Sorry we didn't reply to your other thread! The great thing about HTML5 is it comes with websockets, and AJAX requests. Both of these features we plan to fully support with Construct 2, and aim to make it as easy as possible to make multiplayer games.
I did read your other post, and have been thinking about it. It's difficult to do, but it's something we are thinking about a lot. Node.JS would be a great candidate for Construct 2 built server applications.
With HTML and AJAX requests, it will be really really easy to make requests to servers with HTTP requests to execute certain SQL commands, and retrieve data. Websockets will be more functional for streaming/realtime data.
Tom