Is there any chance that this version could get some new patch or something?

Um, this game isn't in "Currently Supported Titles" so I guess the answer is obvious?
Plus what's wrong with WUM? O:

Team17 stopped supporting W4M a while back. Your best bet is to pick up Worms Ultimate Mayhem, or... well, stop playing the game entirely, I suppose.

Plus what's wrong with WUM? O:
Nothing actually. W4M is just smoother on my old pc. :P
Team17 stopped supporting W4M a while back. Your best bet is to pick up Worms Ultimate Mayhem, or... well, stop playing the game entirely, I suppose.
Ah, that's how it works. So, we can at least always expect improvements for WUM by patches and stuff?

They've released two updates (http://store.steampowered.com/news/?feed=steam_updates&appids=70600) since launch.