Whizbang Dustyboots
Gnometown Hero
Getting overwhelmed with prep is due, for the most part, to too much prep.Do campaigns not fall apart when DMs get overwhelmed by prep anymore?
The good news is that new DMs are more likely than ever to encounter the concept of minimal required prep, as espoused by @SlyFlourish and others. If WotC puts similar advice in the DMG -- and fingers crossed that they do -- that can help a ton.
At this point, though, we don't know many details about what will be in the DMG.