I'd say it's highly likely that we will get all of them remade in HM by the expansion. If we look at the cycle... we should be getting 2.5 by end of january/start of february so more than likely 2.6 by april/may(possibly june to strech it a bit) and then followed up by 3.0 around the anniversary.

In general though do want to see more story focus and less here's stuff for you to grind.

As for the next 24man. I'm guessing it will happen with or post expansion.