At this point you can pretty much assume. Anything referred to as government delays. Translates to government refuses to upset anyone this close to an election.
Something like this will not win them enviromental votes by August. But could well lose a significant number of small company owners votes.
Delaying it means they can critisize a future labour gov no matter what. If labour do not invoke it. "Well we had a plan to improve heat pump didtribution"
If they do "Well you added to the cost of small businesses right in the middle of a cost of living crisis"
ATM its a tech that must be used more. It makes a huge difference to heating and cooling costs. 5x in the better estimates. Less when looking at the current cost of electricity over gas.
But when taking CO2 targets into account. And the advantages cost and procedure wise of moving the reduction efforts to electricity power stations rather then in home boilers etc. It is one of the biggest changes a government can make to household co2 generation.