Mostly, as Tanzella said at ICCF21, they are working on a new mass-flow calorimetry set-up that they believe would produce results that would be much harder to dismiss than the current complex isoperibolic set-up. It is moving forward and has taken precedence over the isoperibolic set-up, hence the lack of COP announcements.
I'm glad they agree with me about the need for this.
I hope they also use refined blanks/controls which rule out any effect of injecting significant power in the form of signals with spikey waveforms (their "Q pulse" or whatever) on instrumentation.
A working boiler would be nice considering how long it has been discussed by Brillouin.