I am pretty sceptical with Kickstarter. There are two reasons why I contributed to D:OS2: * D:OS was awesome, so I know I'll buy the sequel anyway * D:OS was awesome, so even if D:OS2 crashes and burns, I feel they earned my money.
I look forward to when Larian are able to announce details of what will be featured in the GM mode. I'm confident my suggestions are absolutely achievable, but I understand that we can't always have every dream come true.
Some of these changes suggested for modding/GM mode essentially involve improving the D:OS engine. I feel the biggest risk is the potential for delaying the development of the rest of the game while they work on the engine (especially if they end up having employees stuck between projects).