We're incredibly busy right now. We do have a number of improvements planned, but I can't give an ETA, simply because I don't know when we will be ready.
To give you an idea how much work there is involved in a product launch, just one item on our todo list is to prepare a 250+ page manual for Construct 3. There's a lot more going on. I wish as much as anyone we could just click our fingers and have everything ready today, but this takes time. The build service as it is today has already been in development for a long time.