I'd definitely would like to see more development on Corona Scatter too. I personally use Corona Scatter in most situations, and only switch to Forest Pack if really needed.
It's simplicity wins the Forest Pack's messy interface for me. No question Forest Pack is way more advanced, but for everyday use 70% of it's advanced features is not needed.
If only it had features like control over the scale of each separate scattered object (within instanced objects menu), simple exclude include with option to mark the areas with a brush, and option to save your setups, it would be a perfect tool.
Using distance maps and advanced scattering techniques unfortunately also slows Corona Scatter down a lot.
Anyways. Would be awesome to see Corona Scatter Pro at some point.