The jobs need overhauls, not the combat system. If one wants entirely different combat systems, there are MMOs out there who deliver on that. SWtoR or GW2 have a more action focused combat.

My personal opinion is that it is good there is variety in combat systems and not everything has to be made the same just because it would be "modern". People often don't want that, look at OSRS and Retail Runescape or WoW with Classic and Retail. People often prefer simple "old" systems.