Per Particles Expressions / Controls

Hi Blender Community,I don't know exactly how the development of particle and simulation nodes are progressing, but I would like to share some thoughts and techniques I use in other programs. Like this one: I would like to see more controls on a per particle base. For example in Maya. When I create a Particle Emitter, I can set up the basic system with speed, birth rate and so on. If I need something more specific I'm able to create an expression on an per particle base in Maya(Image Attached). More than that I can create an expression as the particles spawn(like inital velocity, position, etc...) , and then there is option to evaluate another expression each frame as long as the particle simulation runs(like increased velocity in just the y-direction or whatever).