Not difficult, it's the Fleet Solid Support ship project. For which there is an approved budget, but due to some rather exuberant commercial T&Cs, didn't get to contract.
Currently enmeshed in Good ideas club thinking in NCHQ. Note that FSS is also required for worldwide naval operations, not just Carrier Strike. It's replacing three ships with a cumulative age of around 110 years. Fort Vic decommissions in 2028.