In September I started part-time development of a real-time strategy (RTS) game in Construct using Javascript coding. I've been posting regular updates on it on...
I am glad you also saw the need for extending the glsl version and extension support, very handy for creation of new effects. I hope you continue this project a lot of good has definitely come out of it for C3 and its users. One suggestion I have is take it all the way through to delivering on another platform (e.g. Steam, iOS App store or Google Playstore), so you also get the experience of what is required for that for a C3 export.
I agree with going all the way with publishing to feel what a struggle it is the moment we decide to release on any platform other than the Web. If Scirra hires an artist in the end to give the game a facelift, it could also become a good promotional channel for introducing Construct to potential customers.