Rigging .Animal rigs and better automatic weights
The most difficult part i believe is rigging well especially animals insects etch . So a better way to automatic weighting should be found button that resolves intersecting and incompatible weights , or a quick rig tool. Also a low poly automatic hair mesh tool instead of particles or converting curves to meshes.
2 Comments
To be clear, it sounds like you're asking for an improvement that you're not even sure exists ("a better way... should be found"). Is that right? If so, that's not particularly helpful. Blender developers come up with some pretty interesting and novel solutions and concepts, but without being way more specific about the inadequacies of the current system, it's difficult to define what exactly an improvement looks like.
@Jason van Gumster: Ok you got a point. Apart from the rigged animals it would be nice to see rigged insect skeletons - spiders, fly etch. with more legs. Also i had used a particle to poly ad-don for hair i believe though a button that does this job should be a default option with options like thickness, poly count -not convert particles to mesh but allowing customization after doing so such as reduced faces (like decimate but for converted hair with real time preview ). I am really grateful about all the job the developers are doing. Finally i would suggest a uv unwrapping mode for faces or humanoids without having to use seams.