Blizzard is likely fearful that people that “complete” the content in a week will complain there’s nothing to do and un-sub. The potential loss of steady monthly income means it’s not OK for Blizz, so likely not going to happen.
I’m no fan of the drip-feed time-gating crap, but Blizz obviously can’t put out content at a faster pace and I’m pretty sure they would need to do that if they removed all such time-gating.
Edit: Based on the blue post below, I would assume that caps are definitely returning at the start of next season. 