Hi Manutoo,
I just read your provisional plans for TE4 and they sound awesome!
I was wondering if you considered using Kickstarter to fund TE4? I know many/ALL of us here will be more than willing to donate!
It might also help you put in more features and/or release it sooner .
* I did a search for "Kickstarter" before I posted this, and no topics showed up.