Sapience said in a recent thread:
The main story arc (not the Epilogues) of Volume II is being revamped in the same manner Volume I was in the past. So you’ll be able to choose to solo through it if you wish.
For those of you (I should say ‘us’ as I am included in this group) who have not been able to finish Volume 2 due to the large amount of group required content, fear no more. You too shall be able to use Inspired Greatness (or something similar, I assume) to finally finish off your Volume 2 quests. Yay!