I imagine it will depend on the number of masters who choose to brawl. Certainly nobody should be forced to do more than one task per week
We will have seven teams - assuming that those Masters who've so far declined Boss-ship don't turn around and change their mind en masse all of a sudden. In the likely event that we have less than seven Masters playing as Bosses, we will open Boss applications to everyone else until we have a total of seven Bosses. Then, those Bosses will pick teams.
Assuming your team has six members, each of you will have one task per week and you'll all be expected to collaborate on the Bonus tasks and the Super Bonus task. However, you'll have more time to complete bonus tasks of both varieties (2 weeks and 6 weeks respectively).
Some of the regular tasks will be combos - for example, Deckbuilder and Card Designer might share a task and will have to work together on that. If both of you work together on that, that's probably not as much workload as a regular task. But, if you're in a smaller team and you happen to be both the Deckbuilder and the Card Designer, well... chances are you'll have to do that whole task yourself.
So Bosses - do think carefully about how many team members you buy. Six members to a team is strongly recommended.
Of course, Nae may have her own points to raise about this. But ultimately this rule change is just about adding flexibility.