First of all there's nothing more I dislike than such a mega-event format.
This devalues and dilutes each discipline.
Which I think is particularly unfortunate this year with such beautiful surroundings we are witnessing.
Among people in general with a busy everyday life there are only a tiny subset able to spare entire 11 days in a row for world championships in each discipline and sub-discipline.
Hence you have to pic a few "main events" and leave the remains.
Which, of course, is a pity, both for the viewers and for the participants.
The road championships should be spread over a week with perhaps a maximum of 2 events on the same day (junior boys and elite women ITT / RR).
*edit* in my dreams: Road WC's 1-2 weeks past La Vuelta and before La Lombarda / Paris-Bourges.
Each discipline as a single prime-time telly event - i.e. prime time for WC host.
And, ofcourse the ITT's an TTT's first with RR's and elite men RR as grande finale as a corner stone to return to.
The Cykelcross WC would be nice as a January 1st hangover-thing (or maybe rather January 2nd, leaving Garmisch-Partenkirchen as the holy grail - some here may have feelings for skijumpers *edit* or rather a fixed recurring Limburg event on December 31th, lurking some guy willing to take some sharp corner exersizes with an Amstel Beer as reward?

).
The Track WC should preferably be around the winter holidays.
The MTB WC should be over a weekend in June before people are inspired to go on breakneck downhill holidays (so the insurance companies can make a living)
...and so on...