I like the thougt of having presets on the effects plugin. The «easy» setup of every effect can be a great starting point, still im missing some - to me quite obvious controls on the fx units to make them really usable.
Any reverb unit should show the reverb length in ms.
Any reverb sould have a «width» control wich would make the posibility for mono reverbs. (In many occations stereo reverbs can be quite overwhelming)
Any kind of delay should show the repeats in ms and feedback is… well feedback. Stereo width control is nifty for any stereo type delay. You know, for making them less stereo.
Any time based effect should have a adjustable lowcut and highcut control.
I really think the more detailed control of the effects plugins should be an option for us who cares - not just the «one knob fix»-version as it is today