Unless they add new scripts (like "Get [xxxx:Blah] from Player2 [xxxx:Something]) for grabbing data over the internet, multiplayer (or even just online play) isn't going to happen.
Yes but if you can create your own scripts which I believe you can, you can use the call script feature at like every opportunity which will still make it possible to make an online game.
"Try not! Do or do not, there is, no try!" Quote Yoda.
The problem would lie in whether or not there IS a script available to call things from over the internet (even if it has to be from a specific IP). Actually, it'd probably have to be more like "Send [xxxx:BlahVariable] to [IP:127.0.0.1], Wait for confirmation".
Edit:
Actually, now that I look more at it, it looks more similar to C++ or JAVA than BASIC, which I originally thought it was going to be.