What's the odds of getting access to stuff on Divinity Engine 4.0 ahead of time (e.g. early access or before)? Would be cool to get a look at the tools available for modders etc and understand what's possible early, to get a headstart figuring out what cool things can be done.

Also, does anyone know how similar it is to the old DE versions and modding tools? Is it worth spending some time playing about with those or will it be so disimilar as to not be worth the bother?