Custom slip rates and custom ailment durations for enemies really opens up the floodgates for status effect use. I can have Poison and Time Stop affect bosses without it breaking their balance! Finally, a healthy middle ground.
(Especially after I cooked up a thing that prevents you from re-applying deadly states more than once in specific occassions.)
Perhaps 3 months from now would be the right time to go for the new RPG Maker (If it really turns out to be a reasonable upgrade to MV).