Will Houdini ever consider removing the concept of “force”?In many modern solvers based on constraints, projections,forces are no longer explicitly used.

You may want to elaborate on what you mean

Since concept of force is pretty fundamental to any simulation, it's easy to understand and it's based on real world concept of force

So regardless of internal solver math and method of integration, I don't see a reason or benefit of getting rid of user facing force controls