I'm honestly not sure why people are giving out that they'll need to finish the CT series when its so easy, I mean Labyrinth and the Tower are incredibly quick and simple and even World of Dankness is rarely that hard unless you get a rare group that cant get past Anger Managment or fail at Cloud's orbs. It should be no suprise either that these need to be done at some point considering the fact that G'raha is a central character not only to the tower but the story itself AND there's a very real possibility considering some of the hints right now that at some point we may end up travelling to the Thirteenth shard in order to repair the damage to it or salvage it(though I'm expecting that in order for this to happen we first need to deal with the Empire once and for all as despite what's happening its the most technologically advanced civilization on Hydaelyn).
Fact is our boy need's not only a conclusion to his current story but deserves a brand new adventure and in order to see that happen they need to make sure his story is consistent which means we need that story completed. Wouldn't be suprised if an element of the story involves having full access to the source CT in 5.3 hence the reason for needing this completed as well.
