One main thing I'd wish is to push this forum more to the public.
I feel like C4Ds ability to extend its functionality is highly underesitmated und flies a bit under the radar. 
I hardly know people who are aware of writing python scripts is pretty easy und very helpful for lots of things. 
I guess, getting your foot in the door with C4D and (especially)python needs a bit more advertisement.
I'd like to refer to scriptspot - a site where you can mostly find scripts for Max. What I want to refer to is: Everyone can write code, just make it more tasty.
And then there should be also some sport of plugins-pool, where people can post their plugins. There have been several sites that do that, but it's quite fragmented. Would be happy, if Maxon would be able to put something.