Well in that case, why not break the expected update into fragments?
Nobody cares if it's full 4.0, I bet everyone would be glad to see a little update too, for example:
Make worms able to import more types of pictures for graves/flags (not just 8bit bmp)
Maybe introduce reconnection system (even tho I'm aware that requires tons of work, so leave it as a special update)
Handle the multi-key problem (when more keys are pressed certain keys simply get ignored, I thought it was my lptop, but since I've bought a new one, I can see it's not)
Integrate pausing system, may be stupid, but if someone really needs to do a 15min job, he just types /pause and anyone can /resume, put 2-3 pauses per game so it's not exploitable and that's it.
Sorry if I'm talking without understanding, if I could help I would, I'm relatively good at python and I've done some projects, so in case you need a hand, showing me how things work, maybe I could help but I doubt anything there is done in python.