The uncertain prospects of proposed UK naval concepts

Would the UK naval concepts raised in the question become real projects or remain proposals?

Their prospects are uncertain. An interesting concept does not establish that ships or facilities will be built.

The prospects of the proposed naval concepts remain uncertain. Their details are unfamiliar to the respondents, who offer no firm prediction about delivery. The earlier Black Swan design study provides a comparison: an interesting idea does not establish that a shipbuilding programme will follow. A judgment about construction would require more information than is available here.