I do hope Ray that you are able to figure a new way of letting new WA extensions work in DW. Depending on deprecated elements (server behaviour panel/bindings/db connector) is very tricky. Can't you find a way to work with new panels, like other ext. creators do?
Or maybe your are already developing this? I am just not sure what technique/extensions to choose as standard to build my business/websites.
I started with ADDT. They left the building. Came over to WA. Spend lots of money and time. Though sometimes buggy, it worked. Now PHP is moving on to 7, I want to upgrade my hosting server to 7. DW let go of the server behaviours and WA still make use of deprecated functions in DW.
I learnt to handcode, and am able to build most things myself, but I love using extensions for that, they speed up the workflow... if they work.
I wish you good luck and wisdom with your development!