However, we may much more likely see an increase in the amount we can get each week which is something that has happened previously.
they increased it one time from 300 to 450 which had nothing to do with tomes becoming old

I could imagine that they will remove the cap because poetics are 5 or 6 months old

Well we never had raids (Binding Coil) added to duty finder or weekly loot restriction removed before the inclusion of a new main patch either for that matter, so that's why I'm curious.
there is no new mainpatch