The answers to these questions will likely emerge from a new assessment phase being undertaken by UK stakeholders in the Type 31 programme and the US Navy to determine how the Mk41 could be integrated into the frigate and the potential financial implications.
https://www.naval-technology.com/featur ... -spectrum/Speaking to Naval Technology, a Royal Navy spokesperson said: “The Mk41 vertical launching system will deliver surface launched strike operations against a full spectrum of targets. Working closely with the US Navy, we have commenced an assessment phase to explore the options and costs associated with fitting T31 with Mk41. It is too early to provide any further information whilst this commercially sensitive work is ongoing.”
I'm doubling down on my speculation that this is part of wider attempts by Babcock to renegotiate the Type 31 contract. Certainly a better method of negotiation than threatening layoffs and talking of moving business abroad. The arrangement with Poland might well have played a role if Mk.41 is being integrated with and fitted to their Miecznik Class ships.
Also would note that until we get confirmation, MK.41 numbers could be anywhere between 8-32 cells.
Must say though: the Royal Navy know how to play the game far better than either of the other services....