Implementing a system where timing is a key factor in combat is hard to do. I would think it is worth while, as most combat in this genre is just plain boring. Take it up to almost an FPS level I say. I highly doubt that will happen though.
If timing in combat is too difficult to do, could a triggered chain event system happen? Based on the level of the combat skills of a character and depending on actions they took.
If a fighter excutes standard attack, then executes special attacks for a jab, then a slash, then a thrust, the system could roll, say a d100, in the background with getting under the combat skill as the goal. If the check succeeds, a special option lights up and is usuable for 20-30 seconds. It could be a battlerage, a series of attacks, a speed boost, etc etc. I think it would make combat a bit more interesting.
Thanks for reading!