R_J_K75
Legend
Personally I would like D&D to be designed like a classless system, but presented as a class-based system. So the underlying structure is there for a classless system (or nearly classless) but the PHB presents various "builds" to make what we now call classes. That way it would be easy to mix and match whatever you want to essentially have a classless system for those who want it.
Somewhat like Archetypes. You'd still have your base base archetypes, fighter, magic user, rouge and priest then build from there might work.